Yaguang Yang's Books

Spacecraft Modeling, Attitude Determination, and Control

Quaternion-Based Approach

By: Yaguang Yang

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Spacecraft Modeling, Attitude Determination, and Control

Quaternion-Based Approach

By: Yaguang Yang

This book discusses all spacecraft attitude control-related topics: spacecraft (including attitude measurements, actuator, and disturbance torques), modeling, spacecraft attitude determination and estimation, and spacecraft attitude controls. Unlike other books addressing these topics, this book focuses on quaternion-based methods because of its many merits. The book lays a brief, but necessary background on rotation sequence representations and frequently used reference frames that form the foundation of spacecraft attitude description. It then discusses the fundamentals of attitude determination using vector measurements, various efficient (including very recently developed) attitude determination algorithms, and the instruments and methods of popular vector measurements. With available attitude measurements, attitude control designs for inertial point and nadir pointing are presented in terms of required torques which are independent of actuators in use. Given the required control torques, some actuators are not able to generate the accurate control torques, therefore, spacecraft attitude control design methods with achievable torques for these actuators (for example, magnetic torque bars and control moment gyros) are provided. Some rigorous controllability results are provided. The book also includes attitude control in some special maneuvers, such as orbital-raising, docking and rendezvous, that are normally not discussed in similar books. Almost all design methods are based on state-spaced modern control approaches, such as linear quadratic optimal control, robust pole assignment control, model predictive control, and gain scheduling control. Applications of these methods to spacecraft attitude control problems are provided. Appendices are provided for readers who are not familiar with these topics.

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Page Count

284

Publisher

CRC Press

Published Date

ISBN 10

0429822138

ISBN 13

9780429822131

Arc-Search Techniques for Interior-Point Methods

By: Yaguang Yang

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Arc-Search Techniques for Interior-Point Methods

By: Yaguang Yang

This book discusses an important area of numerical optimization, called interior-point method. This topic has been popular since the 1980s when people gradually realized that all simplex algorithms were not convergent in polynomial time and many interior-point algorithms could be proved to converge in polynomial time. However, for a long time, there was a noticeable gap between theoretical polynomial bounds of the interior-point algorithms and efficiency of these algorithms. Strategies that were important to the computational efficiency became barriers in the proof of good polynomial bounds. The more the strategies were used in algorithms, the worse the polynomial bounds became. To further exacerbate the problem, Mehrotra's predictor-corrector (MPC) algorithm (the most popular and efficient interior-point algorithm until recently) uses all good strategies and fails to prove the convergence. Therefore, MPC does not have polynomiality, a critical issue with the simplex method. This book discusses recent developments that resolves the dilemma. It has three major parts. The first, including Chapters 1, 2, 3, and 4, presents some of the most important algorithms during the development of the interior-point method around the 1990s, most of them are widely known. The main purpose of this part is to explain the dilemma described above by analyzing these algorithms' polynomial bounds and summarizing the computational experience associated with them. The second part, including Chapters 5, 6, 7, and 8, describes how to solve the dilemma step-by-step using arc-search techniques. At the end of this part, a very efficient algorithm with the lowest polynomial bound is presented. The last part, including Chapters 9, 10, 11, and 12, extends arc-search techniques to some more general problems, such as convex quadratic programming, linear complementarity problem, and semi-definite programming.

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Page Count

495

Publisher

CRC Press

Published Date

ISBN 10

1000220338

ISBN 13

9781000220339

Spacecraft Modeling, Attitude Determination, and Control

Quaternion-Based Approach

By: Yaguang Yang

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Spacecraft Modeling, Attitude Determination, and Control

Quaternion-Based Approach

By: Yaguang Yang

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Page Count

284

Publisher

CRC Press

Published Date

ISBN 10

0429822138

ISBN 13

9780429822131

Grassroots Governance in Taiwan

By: Yaguang Hao

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Grassroots Governance in Taiwan

By: Yaguang Hao

This book provides an alternative agenda to deepen understanding of grassroots governance and interaction in Taiwan. Through to the Taiwan Local Council origin, the judicature, the finance, the political party, the election behavior, the political participation, the government and the local government relations, and so on have carried on the more thorough research. It not only attracts students' interest, but also deserves a broader readership, especially for any course on Taiwan politics, Chinese politics, and East Asian politics.

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Page Count

270

Publisher

Springer Nature

Published Date

ISBN 10

9811998299

ISBN 13

9789811998294

The River Chief System and An Ecological Initiative for Public Participation in China

By: Yaguang Hao,Tingting Wan

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The River Chief System and An Ecological Initiative for Public Participation in China

By: Yaguang Hao,Tingting Wan

This book provides an alternative agenda to deepening the understanding of the River Chief System as a distinctive responsibility approach to solve water pollution and associated governance dilemmas. Insightful analysis is performed through in-depth studies of the origins of China’s River Chief System, responsibility mechanisms, governmental and civil river chiefs, formal and informal water governing institutions, public participation, empowerment with accountability, and the environmental impact.

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Page Count

115

Publisher

Springer Nature

Published Date

ISBN 10

9819949211

ISBN 13

9789819949212

Book's by Yaguang Yang

Spacecraft Modeling, Attitude Determination, and Control

Spacecraft Modeling, Attitude Determination, and Control

Arc-Search Techniques for Interior-Point Methods

Arc-Search Techniques for Interior-Point Methods

Spacecraft Modeling, Attitude Determination, and Control

Spacecraft Modeling, Attitude Determination, and Control

Grassroots Governance in Taiwan

Grassroots Governance in Taiwan

The River Chief System and An Ecological Initiative for Public Participation in China

The River Chief System and An Ecological Initiative for Public Participation in China

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