Won Young Yang's Books

Signals and Systems with MATLAB

By: Won Young Yang

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Signals and Systems with MATLAB

By: Won Young Yang

This book is primarily intended for junior-level students who take the courses on ‘signals and systems’. It may be useful as a reference text for practicing engineers and scientists who want to acquire some of the concepts required for signal proce- ing. The readers are assumed to know the basics about linear algebra, calculus (on complex numbers, differentiation, and integration), differential equations, Laplace R transform, and MATLAB . Some knowledge about circuit systems will be helpful. Knowledge in signals and systems is crucial to students majoring in Electrical Engineering. The main objective of this book is to make the readers prepared for studying advanced subjects on signal processing, communication, and control by covering from the basic concepts of signals and systems to manual-like introduc- R R tions of how to use the MATLAB and Simulink tools for signal analysis and lter design. The features of this book can be summarized as follows: 1. It not only introduces the four Fourier analysis tools, CTFS (continuous-time Fourier series), CTFT (continuous-time Fourier transform), DFT (discrete-time Fourier transform), and DTFS (discrete-time Fourier series), but also illuminates the relationship among them so that the readers can realize why only the DFT of the four tools is used for practical spectral analysis and why/how it differs from the other ones, and further, think about how to reduce the difference to get better information about the spectral characteristics of signals from the DFT analysis.

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476

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Springer Science & Business Media

Published Date

ISBN 10

3540929541

ISBN 13

9783540929543

MIMO-OFDM Wireless Communications with MATLAB

By: Yong Soo Cho,Jaekwon Kim,Won Y. Yang,Chung G. Kang

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MIMO-OFDM Wireless Communications with MATLAB

By: Yong Soo Cho,Jaekwon Kim,Won Y. Yang,Chung G. Kang

MIMO-OFDM is a key technology for next-generation cellular communications (3GPP-LTE, Mobile WiMAX, IMT-Advanced) as well as wireless LAN (IEEE 802.11a, IEEE 802.11n), wireless PAN (MB-OFDM), and broadcasting (DAB, DVB, DMB). In MIMO-OFDM Wireless Communications with MATLAB®, the authors provide a comprehensive introduction to the theory and practice of wireless channel modeling, OFDM, and MIMO, using MATLAB® programs to simulate the various techniques on MIMO-OFDM systems. One of the only books in the area dedicated to explaining simulation aspects Covers implementation to help cement the key concepts Uses materials that have been classroom-tested in numerous universities Provides the analytic solutions and practical examples with downloadable MATLAB® codes Simulation examples based on actual industry and research projects Presentation slides with key equations and figures for instructor use MIMO-OFDM Wireless Communications with MATLAB® is a key text for graduate students in wireless communications. Professionals and technicians in wireless communication fields, graduate students in signal processing, as well as senior undergraduates majoring in wireless communications will find this book a practical introduction to the MIMO-OFDM techniques. Instructor materials and MATLAB® code examples available for download at www.wiley.com/go/chomimo

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458

Publisher

John Wiley & Sons

Published Date

ISBN 10

0470825626

ISBN 13

9780470825624

Applied Numerical Methods Using MATLAB

By: Won Y. Yang,Wenwu Cao,Tae-Sang Chung,John Morris

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Applied Numerical Methods Using MATLAB

By: Won Y. Yang,Wenwu Cao,Tae-Sang Chung,John Morris

In recent years, with the introduction of new media products, there has been a shift in the use of programming languages from FORTRAN or C to MATLAB for implementing numerical methods. This book makes use of the powerful MATLAB software to avoid complex derivations, and to teach the fundamental concepts using the software to solve practical problems. Over the years, many textbooks have been written on the subject of numerical methods. Based on their course experience, the authors use a more practical approach and link every method to real engineering and/or science problems. The main benefit is that engineers don't have to know the mathematical theory in order to apply the numerical methods for solving their real-life problems. An Instructor's Manual presenting detailed solutions to all the problems in the book is available online.

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526

Publisher

John Wiley & Sons

Published Date

ISBN 10

0471705187

ISBN 13

9780471705185

Circuit Systems with MATLAB and PSpice

By: Won Y. Yang

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Circuit Systems with MATLAB and PSpice

By: Won Y. Yang

1. Instead of the conventional method using the general/particular solutions to solve differential equations for the circuits containing inductors/capacitors, this book lays emphasis on the Laplace transform method for solving differential equations. We recommend taking the Laplace transform of electric circuits (containing inductors/capacitors) and setting up the transformed circuit equations directly in the unified framework (as if they were just made of resistors and sources) rather than setting up the circuit equations in the form of differential equations and then taking their Laplace transforms to solve them. The Laplace transform and the inverse Laplace transform are introduced in the Appendix. 2. This book presents several MATLAB programs that can be used to get the Laplace transformed solutions, take their inverse Laplace transforms, and plot the solutions along the time or frequency axis. The MATLAB programs can save a lot of time and effort for obtaining the solutions in the time domain or frequency domain so that readers can concentrate on establishing circuit equations, gaining insights to the problems, and making observations/interpretations of the solutions. 3. This book also introduces step by step how to use OrCAD/PSpice for circuit simulations. For circuit problems taking much time to solve by hand, the readers are recommended to use MATLAB and PSpice. This approach gives the readers not only information about the state of the art, but also self-confidence on the condition that the graphical solutions obtained by using the two software tools agree with each other. The OrCAD/PSpice is introduced in the Appendix. However, the portion of MATLAB and PSpice is kept not large lest the readers should be addicted to just using the software and tempted to neglect the importance of the basic circuit theory. 4. We make each example show something different from other examples so that readers can efficiently acquire the essential circuit analysis techniques and gain insights into the various types of circuits. On the other hand, instead of repeating similar exercise problems, we make most exercise problems arouse readers’ interest in practical application or help form a view for circuit application and design. 5. For representative examples, the analytical solutions are presented together with the results of MATLAB analysis (close to the theory) and PSpice simulation (close to the experiment) in the form of trinity. We are sure that this style of presentation will interest many students, attracting their attention to the topics on circuits efficiently. 6. Unlike most circuit books with a similar title, our book deals with positive-feedback op-amp circuits as well as negative-feedback op-amp circuits.

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550

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Won Y. Yang

Published Date

ISBN 10

8972839957

ISBN 13

9788972839958

Electrochemistry of Insertion Materials for Hydrogen and Lithium

By: Su-Il Pyun,Heon-Cheol Shin,Jong-Won Lee,Joo-Young Go

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Electrochemistry of Insertion Materials for Hydrogen and Lithium

By: Su-Il Pyun,Heon-Cheol Shin,Jong-Won Lee,Joo-Young Go

The understanding of hydrogen/lithium insertion phenomena is of great importance for the development of the next generation of functional electrochemical devices such as rechargeable batteries, electrochromic devices, and fuel cells. This volume introduces a variety of viable electrochemical methods to identify reaction mechanisms and evaluate relevant kinetic properties of insertion electrodes. The authors also outline various ways to analyze anomalous behaviour of hydrogen/lithium transport through insertion electrodes.

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254

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3642294642

ISBN 13

9783642294648

Advanced Reliability Modeling II

Reliability Testing and Improvement : Proceedings of the 2nd Asian International Workshop (AIWARM 2006), Busan, Korea, 24-26 August 2006

By: Tadashi Dohi,Won Young Yun

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Advanced Reliability Modeling II

Reliability Testing and Improvement : Proceedings of the 2nd Asian International Workshop (AIWARM 2006), Busan, Korea, 24-26 August 2006

By: Tadashi Dohi,Won Young Yun

The 2006 Asian International Workshop on Advanced Reliability Modeling (AIWARM) is the second symposium in a series of biennial workshops for the dissemination of state-of-art research and the presentation of practice in reliability and maintenance engineering in Asia. It brings together researchers and engineers from not only Asian countries but also all over world to discuss the state of research and practice in dealing with both reliability issues at the system design phase and maintenance issues at the system operation phase. The theme of AIWARM 2006 is ?reliability testing and improvement?. The contributions in this volume cover all the main topics in reliability and maintenance engineering, providing an in-depth presentation of theory and practice.

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814

Publisher

World Scientific

Published Date

ISBN 10

9812567585

ISBN 13

9789812567581

Advanced Reliability Modeling

Proceedings of the 2004 Asian International Workshop (AIWARM 2004) : Hiroshima, Japan, 26-27 August 2004

By: Tadashi Dohi,Won Young Yun

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Advanced Reliability Modeling

Proceedings of the 2004 Asian International Workshop (AIWARM 2004) : Hiroshima, Japan, 26-27 August 2004

By: Tadashi Dohi,Won Young Yun

The 2004 Asian International Workshop on Advanced Reliability Modeling is a symposium for the dissemination of state-of-the-art research and the presentation of practice in reliability engineering and related issues in Asia. It brings together researchers, scientists and practitioners from Asian countries to discuss the state of research and practice in dealing with reliability issues at the system design (modeling) level, and to jointly formulate an agenda for future research in this engineering area. The proceedings cover all the key topics in reliability, maintainability and safety engineering, providing an in-depth presentation of theory and practice. The proceedings have been selected for coverage in: . OCo Index to Scientific & Technical Proceedings- (ISTP- / ISI Proceedings). OCo Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings). OCo CC Proceedings OCo Engineering & Physical Sciences.

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645

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World Scientific

Published Date

ISBN 10

9812702687

ISBN 13

9789812702685

Making a Semiconductor Superpower

The Seven Engineers from KAIST Who Shaped the Chip Industry

By: Dong-Won Kim

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Making a Semiconductor Superpower

The Seven Engineers from KAIST Who Shaped the Chip Industry

By: Dong-Won Kim

This book provides real stories about the South Korean semiconductor community. It explores the lives and careers of six influential semiconductor engineers who all studied at Korea Advanced Institute of Science and Technology (KAIST) under the mentorship of Dr. Kim Choong-Ki, the most influential semiconductor professor in South Korea during the last quarter of the twentieth century. Kim’s students became known as “Kim’s Mafia” because of the important positions they went on to hold in industry, government, and academia. This book will be of interest to semiconductor engineers and electronics engineers, historians of science and technology, and scholars and students of East Asian studies. “They were called ‘Kim’s Mafia.’ Kim Choong-Ki himself wouldn’t have put it that way. But it was true what semiconductor engineers in South Korea whispered about his former students: They were everywhere. ... Kim was the first professor in South Korea to systematically teach semiconductor engineering. From 1975, when the nation had barely begun producing its first transistors, to 2008, when he retired from teaching, Kim trained more than 100 students, effectively creating the first two generations of South Korean semiconductor experts.” (Source: IEEE Spectrum, October, 2022.)

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238

Publisher

CRC Press

Published Date

ISBN 10

1000936082

ISBN 13

9781000936087

Metamaterials for Perfect Absorption

By: Young Pak Lee,Joo Yull Rhee,Young Joon Yoo,Ki Won Kim

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Metamaterials for Perfect Absorption

By: Young Pak Lee,Joo Yull Rhee,Young Joon Yoo,Ki Won Kim

This book provides a comprehensive overview of the theory and practical development of metamaterial-based perfect absorbers (MMPAs). It begins with a brief history of MMPAs which reviews the various theoretical and experimental milestones in their development. The theoretical background and fundamental working principles of MMPAs are then discussed, providing the necessary background on how MMPAs work and are constructed. There then follows a section describing how different MMPAs are designed and built according to the operating frequency of the electromagnetic wave, and how their behavior is changed. Methods of fabricating and characterizing MMPAs are then presented. The book elaborates on the performance and characteristics of MMPAs, including electromagnetically-induced transparency (EIT). It also covers recent advances in MMPAs and their applications, including multi-band, broadband, tunability, polarization independence and incidence independence. Suitable for graduate students in optical sciences and electronic engineering, it will also serve as a valuable reference for active researchers in these fields.

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180

Publisher

Springer

Published Date

ISBN 10

9811001057

ISBN 13

9789811001055

Pastoral Leadership

A Case Study, Including Reference to John Chrysostom

By: Won Sang Lee

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Pastoral Leadership

A Case Study, Including Reference to John Chrysostom

By: Won Sang Lee

In ascending to heaven, Jesus Christ gave the church the Great Commission to expand the gospel to all nations. Despite this biblical commission, it is still an unfinished task. As leaders of local churches, pastors play a crucial part in this endeavor. Pastoral leadership principles have varied widely throughout history, yet it is interesting to discover the similarities between pastoral leadership principles practiced by John Chrysostom (AD 347-407) in Antioch and Constantinople, and Won Sang Lee (1937-) in Washington, DC. Despite ministering 1600 years apart, both pastors share the same core values: care for people, Christ-like character, biblical preaching, and world missions. This suggests that continued emphasis on these principles will play a significant role in fulfilling the Great Commission, independent of time and place.

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Page Count

195

Publisher

Wipf and Stock Publishers

Published Date

ISBN 10

1630877700

ISBN 13

9781630877705

ZnO-Nanocarbon Core-Shell Type Hybrid Quantum Dots

By: Won Kook Choi

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ZnO-Nanocarbon Core-Shell Type Hybrid Quantum Dots

By: Won Kook Choi

This book offers a comprehensive overview of ZnO-nano carbon core shell hybrid issues. There is significant interest in metal oxide/nanocarbon hybrid functional materials in the field of energy conversion and storage as electrode materials for supercapacitors, Li ion secondary battery, electrocatalysts for water splitting, and optoelectronic devices such as light emitting diodes and solar photovoltaic cells. Despite efforts to manipulate more uniform metal oxide-nanocarbon nanocomposite structures, they have shown poor performance because they are randomly scattered and non-uniformly attached to the nanocarbon surface. For higher and more effective performance of the hybrid structure, 3D conformal coating on metal oxides are highly desirable. In the first part of the book, the physical and chemical properties of ZnO and nanocarbons and the state-of-the-art in related research are briefly summarized. In the next part, the 3D conformal coating synthetic processes of ZnO templated nanocarbon hybrid materials such as ZnO-graphene,-C60, single-walled (SWCNT) are introduced with the aid of schematic illustrations. Analysis of their chemical bonding and structure are also presented. In the final section, several applications are presented: UV photovoltaic cells and photoelectrochemical anodes for water splitting using ZnO-C60 and ZnO-graphene, white-light-emitting diodes based on ZnO-graphene quantum dots(GQDs), inverted solar cells using ligand-modified ZnO-graphene QDs, and P(VDF-TrFE) copolymer with mixed with nano-ring SWCNT. The book describes how strong anchoring bonds between a ZnO core and carbon nanomaterial shell will ultimately prevail over the main drawbacks of ZnO with high charge recombination and poor electrochemical stability in liquid solutions. Due to the moderate energy states and excellent electric properties of the nanocarbons, ultrafast charge carrier transport from the ZnO core to the nanocarbon shell is guaranteed with the use of the photoluminescence (PL) lifetime measurement. Given the growing interest and significance of future research in optoelectronic and electrochemical devices applications, the contents are very timely. This book is targeted towards researchers looking for highly efficient metal oxide-nanocarbon hybrid functional materials in the fields of nano-optoelectronics, photoelectrochemistry, energy storage and conversion.

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Springer

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ISBN 10

9811009805

ISBN 13

9789811009808

Supply Chain Integration for Sustainable Advantages

By: Yongyi Shou,Mingu Kang,Young Won Park

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Supply Chain Integration for Sustainable Advantages

By: Yongyi Shou,Mingu Kang,Young Won Park

This book offers a systematic literature review and a set of empirical studies on supply chain integration. Supply chain management is recognized as an essential means for firms to achieve competitive advantages, in which supply chain integration is regarded as the core for operational excellence: shorter lead time, lower inventory, faster delivery, and higher product and service quality. Using data from an international survey of manufacturing firms, an interrelated set of studies that investigate supply chain integration from different perspectives at multiple levels are conducted. Intra-organizational factors such as products, production systems, and socio-technical systems are examined to understand their effects on supply chain integration, indicating that firms need to implement different types of supply chain integration for specific competitive priorities. Then, the outcomes of supply chain integration, including its impact on risk management and sustainability management, are investigated from an inter-organizational perspective. The firm is embedded in a manufacturing network, a global supply chain, or both, and it can use supply chain integration as a strategic action for risks. Sustainability has been a vital issue for manufacturers, and supply chain integration can enhance its success. This book makes significant contributions to the relevant literature on supply chain integration and offers insights to supply chain managers in manufacturing industries.

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Page Count

163

Publisher

Springer Nature

Published Date

ISBN 10

9811693323

ISBN 13

9789811693328

MATLAB/Simulink for Digital Signal Processing

By: Won Y. Yang

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MATLAB/Simulink for Digital Signal Processing

By: Won Y. Yang

Chapter 1: Fourier Analysis................................................................................................................... 1 1.1 CTFS, CTFT, DTFT, AND DFS/DFT....................................................................................... 1 1.2 SAMPLING THEOREM.......................................................................................................... 16 1.3 FAST FOURIER TRANSFORM (FFT)................................................................................. 19 1.3.1 Decimation-in-Time (DIT) FFT..................................................................................... 19 1.3.2 Decimation-in-Frequency (DIF) FFT............................................................................ 22 1.3.3 Computation of IDFT Using FFT Algorithm................................................................ 23 1.4 INTERPRETATION OF DFT RESULTS............................................................................. 23 1.5 EFFECTS OF SIGNAL OPERATIONS ON DFT SPECTRUM....................................... 31 1.6 SHORT-TIME FOURIER TRANSFORM - STFT.............................................................. 32 Chapter 2: System Function, Impulse Response, and Frequency Response........................ 51 2.1 THE INPUT-OUTPUT RELATIONSHIP OF A DISCRETE-TIME LTI SYSTEM..... 52 2.1.1 Convolution...................................................................................................................... 52 2.1.2 System Function and Frequency Response................................................................... 54 2.1.3 Time Response................................................................................................................. 55 2.2 COMPUTATION OF LINEAR CONVOLUTION USING DFT...................................... 55 2.3 PHYSICAL MEANING OF SYSTEM FUNCTION AND FREQUENCY RESPONSE 58 Chapter 3: Correlation and Power Spectrum................................................................ 73 3.1 CORRELATION SEQUENCE................................................................................................ 73 3.1.1 Crosscorrelation............................................................................................................... 73 3.1.2 Autocorrelation.............................................................................................................. 76 3.1.3 Matched Filter................................................................................................................ 80 3.2 POWER SPECTRAL DENSITY (PSD)................................................................................. 83 3.2.1 Periodogram PSD Estimator........................................................................................... 84 3.2.2 Correlogram PSD Estimator......................................................................................... 85 3.2.3 Physical Meaning of Periodogram............................................................................... 85 3.3 POWER SPECTRUM, FREQUENCY RESPONSE, AND COHERENCE..................... 89 3.3.1 PSD and Frequency Response........................................................................................ 90 3.3.2 PSD and Coherence....................................................................................................... 91 3.4 COMPUTATION OF CORRELATION USING DFT ...................................................... 94 Chapter 4: Digital Filter Structure................................................................................ 99 4.1 INTRODUCTION...................................................................................................................... 99 4.2 DIRECT STRUCTURE ........................................................................................................ 101 4.2.1 Cascade Form................................................................................................................ 102 4.2.2 Parallel Form............................................................................................................... 102 4.3 LATTICE STRUCTURE ..................................................................................................... 104 4.3.1 Recursive Lattice Form................................................................................................. 106 4.3.2 Nonrecursive Lattice Form........................................................................................... 112 4.4 LINEAR-PHASE FIR STRUCTURE ................................................................................ 114 4.4.1 FIR Filter with Symmetric Coefficients...................................................................... 115 4.4.2 FIR Filter with Anti-Symmetric Coefficients........................................................... 115 4.5 FREQUENCY-SAMPLING (FRS) STRUCTURE .......................................................... 118 4.5.1 Recursive FRS Form..................................................................................................... 118 4.5.2 Nonrecursive FRS Form............................................................................................. 124 4.6 FILTER STRUCTURES IN MATLAB ............................................................................. 126 4.7 SUMMARY ............................................................................................................................ 130 Chapter 5: Filter Design.............................................................................................. 137 5.1 ANALOG FILTER DESIGN................................................................................................. 137 5.2 DISCRETIZATION OF ANALOG FILTER.................................................................... 145 5.2.1 Impulse-Invariant Transformation............................................................................. 145 5.2.2 Step-Invariant Transformation - Z.O.H. (Zero-Order-Hold) Equivalent .............. 146 5.2.3 Bilinear Transformation (BLT).................................................................................. 147 5.3 DIGITAL FILTER DESIGN................................................................................................. 150 5.3.1 IIR Filter Design............................................................................................................ 151 5.3.2 FIR Filter Design......................................................................................................... 160 5.4 FDATOOL................................................................................................................................ 171 5.4.1 Importing/Exporting a Filter Design Object................................................................ 172 5.4.2 Filter Structure Conversion........................................................................................ 174 5.5 FINITE WORDLENGTH EFFECT..................................................................................... 180 5.5.1 Quantization Error......................................................................................................... 180 5.5.2 Coefficient Quantization............................................................................................. 182 5.5.3 Limit Cycle.................................................................................................................. 185 5.6 FILTER DESIGN TOOLBOX ............................................................................................ 193 Chapter 6: Spectral Estimation................................................................................... 205 6.1 CLASSICAL SPECTRAL ESTIMATION.......................................................................... 205 6.1.1 Correlogram PSD Estimator......................................................................................... 205 6.1.2 Periodogram PSD Estimator....................................................................................... 206 6.2 MODERN SPECTRAL ESTIMATION ............................................................................ 208 6.2.1 FIR Wiener Filter........................................................................................................ 208 6.2.2 Prediction Error and White Noise.............................................................................. 212 6.2.3 Levinson Algorithm.................................................................................................... 214 6.2.4 Burg Algorithm........................................................................................................... 217 6.2.5 Various Modern Spectral Estimation Methods......................................................... 219 6.3 SPTOOL .................................................................................................................................. 224 Chapter 7: DoA Estimation......................................................................................... 241 7.1 BEAMFORMING AND NULL STEERING...................................................................... 244 7.1.1 Beamforming................................................................................................................. 244 7.1.2 Null Steering................................................................................................................ 248 7.2 CONVENTIONAL METHODS FOR DOA ESTIATION................................................ 250 7.2.1 Delay-and-Sum (or Fourier) Method - Classical Beamformer.................................. 250 7.2.2 Capon's Minimum Variance Method......................................................................... 252 7.3 SUBSPACE METHODS FOR DOA ESTIATION............................................................ 253 7.3.1 MUSIC (MUltiple SIgnal Classification) Algorithm................................................. 253 7.3.2 Root-MUSIC Algorithm............................................................................................. 254 7.3.3 ESPRIT Algorithm...................................................................................................... 256 7.4 SPATIAL SMOOTHING TECHNIQUES ........................................................................ 258 Chapter 8: Kalman Filter and Wiener Filter............................................................. 267 8.1 DISCRETE-TIME KALMAN FILTER.............................................................................. 267 8.1.1 Conditional Expectation/Covariance of Jointly Gaussian Random Vectors............. 267 8.1.2 Stochastic Statistic Observer...................................................................................... 270 8.1.3 Kalman Filter for Nonstandard Cases........................................................................ 276 8.1.4 Extended Kalman Filter (EKF).................................................................................. 286 8.1.5 Unscented Kalman Filter (UKF)................................................................................ 288 8.2 DISCRETE-TIME WIENER FILTER .............................................................................. 291 Chapter 9: Adaptive Filter.......................................................................................... 301 9.1 OPTIMAL FIR FILTER........................................................................................................ 301 9.1.1 Least Squares Method................................................................................................... 302 9.1.2 Least Mean Squares Method...................................................................................... 304 9.2 ADAPTIVE FILTER ............................................................................................................ 306 9.2.1 Gradient Search Approach - LMS Method.................................................................. 306 9.2.2 Modified Versions of LMS Method........................................................................... 310 9.3 MORE EXAMPLES OF ADAPTIVE FILTER ............................................................... 316 9.4 RECURSIVE LEAST-SQUARES ESTIMATION .......................................................... 320 Chapter 10: Multi-Rate Signal Processing and Wavelet Transform............................ 329 10.1 MULTIRATE FILTER........................................................................................................ 329 10.1.1 Decimation and Interpolation..................................................................................... 330 10.1.2 Sampling Rate Conversion....................................................................................... 334 10.1.3 Decimator/Interpolator Polyphase Filters................................................................ 335 10.1.4 Multistage Filters........................................................................................................ 339 10.1.5 Nyquist (M) Filters and Half-Band Filters.............................................................. 348 10.2 TWO-CHANNEL FILTER BANK ................................................................................... 351 10.2.1 Two-Channel SBC (SubBand Coding) Filter Bank.................................................. 351 10.2.2 Standard QMF (Quadrature Mirror Filter) Bank.................................................... 352 10.2.3 PR (Perfect Reconstruction) Conditions.................................................................. 353 10.2.4 CQF (Conjugate Quadrature Filter) Bank................................................................. 354 10.3 M-CHANNEL FILTER BANK ......................................................................................... 358 10.3.1 Complex-Modulated Filter Bank (DFT Filter Bank)................................................ 359 10.3.2 Cosine-Modulated Filter Bank................................................................................. 363 10.3.3 Dyadic (Octave) Filter Bank.................................................................................... 366 10.4 WAVELET TRANSFORM ............................................................................................... 369 10.4.1 Generalized Signal Transform................................................................................... 369 10.4.2 Multi-Resolution Signal Analysis............................................................................ 371 10.4.3 Filter Bank and Wavelet........................................................................................... 374 10.4.4 Properties of Wavelets and Scaling Functions.......................................................... 378 10.4.5 Wavelet, Scaling Function, and DWT Filters......................................................... 379 10.4.6 Wavemenu Toolbox and Examples of DWT.......................................................... 382 Chapter 11: Two-Dimensional Filtering...................................................................... 401 11.1 DIGITAL IMAGE TRANSFORM..................................................................................... 401 11.1.1 2-D DFT (Discrete Fourier Transform)..................................................................... 401 11.1.2 2-D DCT (Discrete Cosine Transform)................................................................... 402 11.1.3 2-D DWT (Discrete Wavelet Transform)................................................................ 404 11.2 DIGITAL IMAGE FILTERING ....................................................................................... 411 11.2.1 2-D Filtering................................................................................................................ 411 11.2.2 2-D Correlation......................................................................................................... 412 11.2.3 2-D Wiener Filter...................................................................................................... 412 11.2.4 Smoothing Using LPF or Median Filter.................................................................... 413 11.2.5 Sharpening Using HPF or Gradient/Laplacian-Based Filter.................................. 414

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518

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Won Y. Yang

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ISBN 10

8972839965

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9788972839965

MATLAB/Simulink for Digital Communication

By: Won Y. Yang

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MATLAB/Simulink for Digital Communication

By: Won Y. Yang

Chapter 1: Fourier Analysis 1 1.1 CONTINUOUS-TIME FOURIER SERIES (CTFS)................................................................... 2 1.2 PROPERTIES OF CTFS............................................................................................................... 6 1.2.1 Time-Shifting Property....................................................................................................... 6 1.2.2 Frequency-Shifting Property ............................................................................................ 6 1.2.3 Modulation Property......................................................................................................... 6 1.3 CONTINUOUS-TIME FOURIER TRANSFORM (CTFT)....................................................... 7 1.4 PROPERTIES OF CTFT............................................................................................................. 13 1.4.1 Linearity............................................................................................................................ 13 1.4.2 Conjugate Symmetry........................................................................................................ 13 1.4.3 Real Translation (Time Shifting) and Complex Translation (Frequency Shifting)..... 14 1.4.4 Real Convolution and Correlation................................................................................... 14 1.4.5 Complex Convolution – Modulation/Windowing.......................................................... 14 1.4.6 Duality............................................................................................................................... 17 1.4.7 Parseval Relation - Power Theorem................................................................................ 18 1.5 DISCRETE-TIME FOURIER TRANSFORM (DTFT)............................................................ 18 1.6 DISCRETE-TIME FOURIER SERIES - DFS/DFT.................................................................. 19 1.7 SAMPLING THEOREM............................................................................................................. 21 1.7.1 Relationship between CTFS and DFS ........................................................................... 21 1.7.2 Relationship between CTFT and DTFT.......................................................................... 27 1.7.3 Sampling Theorem............................................................................................................ 27 1.8 POWER, ENERGY, AND CORRELATION............................................................................ 29 1.9 LOWPASS EQUIVALENT OF BANDPASS SIGNALS........................................................ 30 Chapter 2: PROBABILITY AND RANDOM PROCESSES 39 2.1 PROBABILITY........................................................................................................................... 39 2.1.1 Definition of Probability................................................................................................. 39 2.1.2 Joint Probability and Conditional Probability............................................................... 40 2.1.3 Probability Distribution/Density Function..................................................................... 41 2.1.4 Joint Probability Density Function................................................................................. 41 2.1.5 Condtional Probability Density Function...................................................................... 41 2.1.6 Independence................................................................................................................... 41 2.1.7 Function of a Random Variable...................................................................................... 42 2.1.8 Expectation, Covariance, and Correlation..................................................................... 43 2.1.9 Conditional Expectation.................................................................................................. 47 2.1.10 Central Limit Theorem - Normal Convergence Theorem............................................. 47 2.1.11 Random Processes............................................................................................................ 49 2.1.12 Stationary Processes and Ergodic Processes.................................................................. 51 2.1.13 Power Spectral Density (PSD)......................................................................................... 53 2.1.14 White Noise and Colored Noise...................................................................................... 53 2.2 LINEAR FILTERING OF A RANDOM PROCESS................................................................ 57 2.3 PSD OF A RANDOM PROCESS.............................................................................................. 58 2.4 FADING EFFECT OF A MULTIPATH CHANNEL............................................................... 58 Chapter 3: ANALOG MODULATION 71 3.1 AMPLITUDE MODULATION (AM)....................................................................................... 71 3.1.1 DSB (Double Sideband)-AM (Amplitude Modulation)............................................... 71 3.1.2 Conventional AM (Amplitude Modulation)................................................................ 75 3.1.3 SSB (Single Sideband)-AM(Amplitude Modulation)................................................. 78 3.2 ANGLE MODULATION (AGM) - FREQUENCY/PHASE MODULATIONS .................. 82 Chapter 4: ANALOG-TO-DIGITAL CONVERSION 87 4.1 QUANTIZATION........................................................................................................................ 87 4.1.1 Uniform Quantization..................................................................................................... 88 4.1.2 Non-uniform Quantization.............................................................................................. 89 4.1.3 Non-uniform Quantization Considering the Absolute Errors .................................... 91 4.2 Pulse Code Modulation (PCM)................................................................................................... 95 4.3 Differential Pulse Code Modulation (DPCM)........................................................................... 97 4.4 Delta Modulation (DM)............................................................................................................. 100 Chapter 5: BASEBAND TRANSMISSION 107 5.1 RECEIVER (RCVR) and SNR ............................................................................................... 107 5.1.1 Receiver of RC Filter Type.......................................................................................... 109 5.1.2 Receiver of Matched Filter Type................................................................................. 110 5.1.3 Signal Correlator........................................................................................................... 112 5.2 PROBABILITY OF ERROR WITH SIGNALING................................................................ 114 5.2.1 Antipodal (Bipolar) Signaling...................................................................................... 114 5.2.2 On-Off Keying (OOK)/Unipolar Signaling................................................................. 118 5.2.3 Orthogonal Signaling.................................................................................................... 119 5.2.4 Signal Constellation Diagram...................................................................................... 121 5.2.5 Simulation of Binary Communication......................................................................... 123 5.2.6 Multi-Level(amplitude) PAM Signaling..................................................................... 127 5.2.7 Multi-Dimensional Signaling....................................................................................... 129 5.2.8 Bi-Orthogonal Signaling............................................................................................... 133 Chapter 6: BANDLIMITED CHANNEL AND EQUALIZER 139 6.1 BANDLIMITED CHANNEL................................................................................................... 139 6.1.1 Nyquist Bandwidth........................................................................................................ 139 6.1.2 Raised-Cosine Frequency Response............................................................................ 141 6.1.3 Partial Respone Signaling - Duobinary Signaling...................................................... 143 6.2 EQUALIZER............................................................................................................................. 148 6.2.1 Zero-Forcing Equalizer (ZFE)...................................................................................... 148 6.2.2 MMSE Equalizer (MMSEE)........................................................................................ 151 6.2.3 Adaptive Equalizer (ADE)........................................................................................... 154 6.2.4 Decision Feedback Equalizer (DFE)............................................................................ 155 Chapter 7: BANDPASS TRANSMISSION 169 7.1 AMPLITUDE SHIFT KEYING (ASK)................................................................................... 169 7.2 FREQUENCY SHIFT KEYING (FSK)................................................................................... 178 7.3 PHASE SHIFT KEYING (PSK)............................................................................................... 187 7.4 DIFFERENTIAL PHASE SHIFT KEYING (DPSK)............................................................. 190 7.5 QUADRATURE AMPLITUDE MODULATION (QAM).................................................... 195 7.6 COMPARISON OF VARIOUS SIGNALINGS...................................................................... 200 Chapter 8: CARRIER RECOVERY AND SYMBOL SYNCHRONIZATION 227 8.1 INTRODUCTION..................................................................................................................... 227 8.2 PLL (PHSE-LOCKED LOOP)................................................................................................. 228 8.3 ESTIMATION OF CARRIER PHASE USING PLL............................................................. 233 8.4 CARRIER PHASE RECOVERY............................................................................................. 235 8.4.1 Carrier Phase Recovery Using a Squaring Loop for BPSK Signals.......................... 235 8.4.2 Carrier Phase Recovery Using Costas Loop for PSK Signals.................................... 237 8.4.3 Carrier Phase Recovery for QAM Signals.................................................................. 240 8.5 SYMBOL SYNCHRONIZATION (TIMING RECOVERY)................................................ 243 8.5.1 Early-Late Gate Timing Recovery for BPSK Signals................................................ 243 8.5.2 NDA-ELD Synchronizer for PSK Signals.................................................................. 246 Chapter 9: INFORMATION AND CODING 257 9.1 MEASURE OF INFORMATION - ENTROPY...................................................................... 257 9.2 SOURCE CODING................................................................................................................... 259 9.2.1 Huffman Coding............................................................................................................ 259 9.2.2 Lempel-Zip-Welch Coding........................................................................................... 262 9.2.3 Source Coding vs. Channel Coding............................................................................. 265 9.3 CHANNEL MODEL AND CHANNEL CAPACITY............................................................ 266 9.4 CHANNEL CODING................................................................................................................ 271 9.4.1 Waveform Coding......................................................................................................... 272 9.4.2 Linear Block Coding..................................................................................................... 273 9.4.3 Cyclic Coding................................................................................................................ 282 9.4.4 Convolutional Coding and Viterbi Decoding.............................................................. 287 9.4.5 Trellis-Coded Modulation (TCM)................................................................................ 296 9.4.6 Turbo Coding................................................................................................................. 300 9.4.7 Low-Density Parity-Check (LDPC) Coding............................................................... 311 9.4.8 Differential Space-Time Block Coding (DSTBC)...................................................... 316 9.5 CODING GAIN ....................................................................................................................... 319 Chapter 10: SPREAD-SPECTRUM SYSTEM 339 10.1 PN (Pseudo Noise) Sequence..................................................................................................... 339 10.2 DS-SS (Direct Sequence Spread Spectrum)............................................................................. 347 10.3 FH-SS (Frequency Hopping Spread Spectrum)........................................................................ 352 Chapter 11: OFDM SYSTEM 359 11.1 OVERVIEW OF OFDM......................................................................................................... 359 11.2 FREQUENCY BAND AND BANDWIDTH EFFICIENCY OF OFDM............................ 363 11.3 CARRIER RECOVERY AND SYMBOL SYNCHRONIZATION.......................................... 364 11.4 CHANNEL ESTIMATION AND EQUALIZATION.......................................................... 381 11.5 INTERLEAVING AND DEINTERLEAVING..................................................................... 384 11.6 PUNCTURING AND DEPUNCTURING............................................................................ 386 11.7 IEEE STANDARD 802.11A - 1999....................................................................................... 388

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459

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Won Y. Yang

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ISBN 10

8972839981

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9788972839989

Kim Il Sung and Korea's Struggle

An Unconventional Firsthand History

By: Won Tai Sohn, M.D.

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Kim Il Sung and Korea's Struggle

An Unconventional Firsthand History

By: Won Tai Sohn, M.D.

In 1910, Japan took control over Korea by military and political force. Then, in 1945, Korea was arbitrarily divided by the Soviet Union and the United States into North and South Korea. The Soviets impeded all United Nations efforts to hold elections and reunite the country under one government. Korea has been struggling for independence and reunification ever since. In this memoir, Won Tai Sohn recollects the unusually harsh Japanese treatment of Korean people in Korea, Manchuria, China and Japan, and remembers his close relationship with North Korean president Kim Il Sung from their boyhood to President Kim's sudden death in 1994. According to Dr. Sohn, President Kim devoted his entire life to the liberation of Korea, starting with fighting against the Japanese stationed in North Korea and China. He became the first premier of the Democratic People's Republic of Korea when it was established in 1948, and led his nation in the Korean War from 1950 to 1953. In 1993, President Kim's nuclear program and defense policy became a great concern for the United States when intelligence analysis estimated that North Korea was less than two years away from being able to strike South Korea and Japan with nuclear missiles. President Kim died two months after talks with former U.S. President Jimmy Carter about ending North Korea's nuclear program.

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252

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McFarland

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0786415894

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9780786415892

The Milky Way

How an Eleven-Year-Old Girl Found Songs in the Chaos of the Korean War

By: Insook Kim Won

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The Milky Way

How an Eleven-Year-Old Girl Found Songs in the Chaos of the Korean War

By: Insook Kim Won

Insook Wons peaceful childhood years were marred when the Korean War broke out. She began to support her family at the age of fifteen. A high school music teacher gave Won her first voice lessons, which led her to the world of singing. Despite the many obstacles, she persisted in pursuing her academic goals. Determined to study at a university in the United States, she received a scholarship and managed to secure a visa and travel funds. With the assurance she received from a young professors family, she came to Miami, Florida, to study voice at the University of Miami. Upon completing her masters degree, she married Duk Joong Won, a longtime church friend. She moved to Washington, DC, where he was working on postgraduate studies. She was selected as a Teacher Corps intern and candidate for her second masters degree in teaching. She served public schools in three counties in the Washington metropolitan area for a decade. She and her husband raised two daughters. As her husband was called to do ministry, she was by his side ministering, serving the needy, directing choirs, refining her voice as a soloist, and deepening her love of God.

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227

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WestBow Press

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1512707163

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9781512707168

Cultural Blending In Korean Death Rites

New Interpretive Approaches

By: Chang-Won Park

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Cultural Blending In Korean Death Rites

New Interpretive Approaches

By: Chang-Won Park

Cultural Blending in Korean Death Rites examines the cultural encounter of Confucianism and Christianity with particular reference to death rites in Korea. As its overarching interpretive framework, this book employs the idea of the 'total social phenomenon', a concept first introduced by the French anthropologist Marcel Mauss (1872-1950). From the perspective of the total social phenomenon, this book utilizes a combination of theological, historical, sociological and anthropological approaches, and explores Korean death rites by classifying them into three categories: ritual before death (Bible copying), ritual at death (funerary rites),and ritual after death (ancestral ritual). It focuses on Christian practices as they epitomize the complex interplay of Confucianism and Christianity. By drawing on a total social phenomenon approach to the empirical case of Korean death rites, Chang-Won Park contributes to the advancement of theory and method in religious studies.

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243

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Bloomsbury Publishing

Published Date

ISBN 10

1441179178

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9781441179173

Locating Translingualism

By: Jerry Won Lee

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Locating Translingualism

By: Jerry Won Lee

This book questions what culture is and what it is assumed to 'look like' in the context of globalization.

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219

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Cambridge University Press

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1009100106

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9781009100106

"I Will Shoot Them from My Loving Heart"

Memoir of a South Korean Officer in the Korean War

By: Won Moo Hurh

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"I Will Shoot Them from My Loving Heart"

Memoir of a South Korean Officer in the Korean War

By: Won Moo Hurh

In the spring of 1950, 17-year-old South Korean high school senior Won Moo Hurh dreamed of studying law at Seoul National University after graduation. His life changed irrevocably on June 25 when North Korean forces invaded his homeland. After less than three months of training, Hurh was commissioned as a second lieutenant in the Army of the Republic of Korea and sent to the front, where the casualty rate for such junior officers could reach 60 percent. In this exceptionally well written memoir, Hurh provides not only a descriptive chronicle of his wartime exploits, but also a social and psychological exploration of the absurdity of war in general. Hurh's vivid remembrances bring to life the "forgotten" Korean War from the viewpoint of a Korean officer, a perspective rarely available in English until now.

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200

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McFarland

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ISBN 10

0786487984

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9780786487981

Musculoskeletal Injuries and Conditions

Assessment and Management

By: Se Won Lee, MD

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Musculoskeletal Injuries and Conditions

Assessment and Management

By: Se Won Lee, MD

Musculoskeletal Injuries and Conditions: Assessment and Management is a practical guide to diagnosis and treatment of musculoskeletal conditions in clinical practice. More comprehensive than a handbook, yet more clinically-focused than a desk reference, this volume is a one-stop guide for clinicians who deal with musculoskeletal disorders and injuries in the practice setting. The book is organized by anatomic region, from neck to toe, and written in outline format. Each chapter concisely presents the basic knowledge that every practitioner needs to have at the ready in the outpatient clinical context. Taking a uniform approach based on isolating symptoms and the location of the pain, the book presents a uniquely practical template for non-operative management of a broad spectrum of musculoskeletal problems. All chapters include epidemiology, anatomy, biomechanics, physical examination, diagnostic studies, and treatment. Flowcharts for differential diagnosis and initial management are provided for chief complaints. Helpful tables, lists, and over 150 anatomic illustrations supplement the text throughout. Given the increasing importance of ultrasound in clinical decision-making at the point of care, a mini-atlas of normal and abnormal findings for common injuries is presented as part of the imaging work-up. Designed to help busy practitioners diagnose and treat musculoskeletal disorders in the clinic or office, this book is an essential resource for physicians in rehabilitation and sports medicine, primary care, orthopedics, and other healthcare professionals who work in outpatient settings. Key Features: Provides a consistent approach to managing common musculoskeletal conditions based on location of pain Bulleted format and clear heading structure make it easy to find information More than 30 flowcharts map out differential diagnosis, diagnostic approach, and initial management strategy for each complaint Packed with useful tables, lists, and over 150 illustrations of surface anatomy Integrates musculoskeletal ultrasound into the imaging workup, with over 40 normal and abnormal scans to aid in recognizing signature pathologies at the point of care Purchase includes free access to the fully-searchable downloadable e-book with image bank

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488

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Springer Publishing Company

Published Date

ISBN 10

1617052752

ISBN 13

9781617052750

Book's by Won Young Yang

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