This book discusses the trade-offs involved in designing direct RF digitization receivers for the radio frequency and digital signal processing domains. A system-level framework is developed, quantifying the relevant impairments of the signal processing chain, through a comprehensive system-level analysis. Special focus is given to noise analysis (thermal noise, quantization noise, saturation noise, signal-dependent noise), broadband non-linear distortion analysis, including the impact of the sampling strategy (low-pass, band-pass), analysis of time-interleaved ADC channel mismatches, sampling clock purity and digital channel selection. The system-level framework described is applied to the design of a cable multi-channel RF direct digitization receiver. An optimum RF signal conditioning, and some algorithms (automatic gain control loop, RF front-end amplitude equalization control loop) are used to relax the requirements of a 2.7GHz 11-bit ADC. A two-chip implementation is presented, using BiCMOS and 65nm CMOS processes, together with the block and system-level measurement results. Readers will benefit from the techniques presented, which are highly competitive, both in terms of cost and RF performance, while drastically reducing power consumption.
This book discusses the trade-offs involved in designing direct RF digitization receivers for the radio frequency and digital signal processing domains. A system-level framework is developed, quantifying the relevant impairments of the signal processing chain, through a comprehensive system-level analysis. Special focus is given to noise analysis (thermal noise, quantization noise, saturation noise, signal-dependent noise), broadband non-linear distortion analysis, including the impact of the sampling strategy (low-pass, band-pass), analysis of time-interleaved ADC channel mismatches, sampling clock purity and digital channel selection. The system-level framework described is applied to the design of a cable multi-channel RF direct digitization receiver. An optimum RF signal conditioning, and some algorithms (automatic gain control loop, RF front-end amplitude equalization control loop) are used to relax the requirements of a 2.7GHz 11-bit ADC. A two-chip implementation is presented, using BiCMOS and 65nm CMOS processes, together with the block and system-level measurement results. Readers will benefit from the techniques presented, which are highly competitive, both in terms of cost and RF performance, while drastically reducing power consumption.
This book is a long-term history of optics, from early Greek theories of vision to the nineteenth-century victory of the wave theory of light. It shows how light gradually became the central entity of a domain of physics that no longer referred to the functioning of the eye; it retraces the subsequent competition between medium-based and corpuscular concepts of light; and it details the nineteenth-century flourishing of mechanical ether theories. The author critically exploits and sometimes completes the more specialized histories that have flourished in the past few years. The resulting synthesis brings out the actors' long-term memory, their dependence on broad cultural shifts, and the evolution of disciplinary divisions and connections. Conceptual precision, textual concision, and abundant illustration make the book accessible to a broad variety of readers interested in the origins of modern optics.
This book retraces the emergence of relativity principles in early modern mechanics, documents their constructive use in eighteenth- and nineteenth-century mechanics, optics, and electrodynamics, and gives a well-rooted account of the genesis of special and general relativity in the early twentieth century. As an exercise in long-term history, it demonstrates the connectivity of issues and approaches across several centuries, despite enormous changes in context and culture." -- back cover.
Examines Jewish-German “tropes” in Hélène Cixous's oeuvre and life and their impact on her work as a feminist, poet, and playwright. Hélène Cixous is a poet, philosopher, and activist known worldwide for her manifesto on Écriture feminine (feminine writing) and for her influential literary texts, plays, and essays. While the themes were rarely present in her earlier writings, Germany and Jewish-German family figures and topics have significantly informed most of Cixous's late works. Born in Algeria in June 1937, she grew up with a mother who had escaped Germany after the rise of Nazism and a grandmother who fled the racial laws of the Third Reich in 1938. In her writing, Cixous refines the primitive scene of a “German” upbringing in French-occupied colonial, antisemitic Algeria. Scholar and filmmaker Olivier Morel delves into the signs and influences that “Germany,” “German,” and “Osnabrück” have exerted over Cixous's work. Featuring an exclusive interview with Hélène Cixous and stills from their travel together to Osnabrück in Morel's 2018 documentary, Ever, Rêve, Hélène Cixous, Morel's The “German Illusion” examines the unique literary meditation on the Holocaust sustained throughout her later texts. Morel helps us to understand an uncannily original oeuvre that embodies the complexities of modernity's genocidal history in a new way.
The field of archaeology continues to face a major crisis of interpretation. The traditional view is that the basic business of archaeology is to reconstruct the history of cultures and civilizations through their material productions. Olivier challenges this view with a new approach to archaeological remains based on the works of French theorists such as Foucault, de Certeaux, and Derrida, with insight from Darwin and Freud. His thesis is that archaeology does not study the past itself but rather what materially remains of the past in our present. Olivier also develops an interpretation of material culture based on Aby Warburg’s and Walter Benjamin’s work in the anthropology of art. With wider implications for history and all social sciences, The Dark Abyss of Time is a major contribution to the theory of time, memory, heritage, and archaeology. This flawless translation makes Olivier’s elegantly written work available in English for the first time.
Inspired by the general configuration characteristics of automatic production lines, the author discusses the modelisation of important sectors of a factory. Typical topics such as parts feeders, part orienting devices, insertion mechanisms and buffered flows are analysed using random evolution models and non-linear dynamical systems theory.
This book recounts the developments of fundamental electrodynamics from Ampère's investigation of the forces between electric currents to Einstein's introduction of a new doctrine of space and time. The emphasis is on the diverse, evolving practices of electrodynamics and the interactions between the corresponding scientific traditions. A richly documented, clearly written, and abundantly illustrated history of the subject.
Analyse : (p. 253-254) Dans le chapitre consacré au parallèle entre Bonaparte et Cromwell, l'auteur cite un bref extrait des "Mélanges de Littérature et Politique". Constant y compare le Parlement sous Cromwell et le Tribunat sous Bonaparte.
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