Richard J. Manterfield The Institution of Engineering and Technology, 1991 Library of Congress TK5103.8.M36 1991 | Dewey Decimal 621.3822
Signalling is the life-blood of telecommunications and common-channel signalling is the key to providing flexible and cost-effective services to customers. This book commences with the basics of signalling and then unveils the complexities of common-channel signalling systems. The book is written to appeal to a wide range of readership. The novice can build up a comprehensive understanding of signalling by systematically making progress through the book. Experts in telecommunications who wish to understand the specialist subject can select appropriate text, guided by the chapter summaries. Experts in signalling will find the book useful in extending their knowledge of a very broad subject. The glossary cuts through the maze of jargon.
The book describes basic principles, channel-associated signalling systems and the CCITT Signalling System No. 6. However, the focus of the book is upon common-channel signalling and CCITT Signalling System No. 7 and the Digital Subscriber Signalling System No. 1 are described in detail. The latest techniques are explained including, for example, the form of signalling required for gaining access to remote databases. The interworking of common-channel signalling systems is also described.
Brazilian popular music is widely celebrated for its inventive amalgams of styles and sounds. Cariocas, native residents of Rio de Janeiro, think of their city as particularly conducive to musical mixture, given its history as a hub of Brazilian media and culture. In Contemporary Carioca, the ethnomusicologist Frederick Moehn introduces a generation of Rio-based musicians who collaboratively have reinvigorated Brazilian genres, such as samba and maracatu, through juxtaposition with international influences, including rock, techno, and funk. Moehn highlights the creativity of individual artists, including Marcos Suzano, Lenine, Pedro Luís, Fernanda Abreu, and Paulinho Moska. He describes how these artists manage their careers, having reclaimed some control from record labels. Examining the specific meanings that their fusions have in the Carioca scene, he explains that musical mixture is not only intertwined with nationalist discourses of miscegenation, but also with the experience of being middle-class in a country confronting neoliberal models of globalization. At the same time, he illuminates the inseparability of race, gender, class, place, national identity, technology, and expressive practice in Carioca music and its making. Moehn offers vivid depictions of Rio musicians as they creatively combine and reconcile local realities with global trends and exigencies.
The processing and analysis of signals and data is today a fast-growing and crucial activity in a diverse range of fields, not only in communications and image technology itself but in almost every other research area in science. The purpose of this book is to explain some of the theoretical concepts that underly the methods now in common use. The author starts from the assumption that some knowledge of the basic principles should be in the toolkit of every engineer or scientist working with signals or data.
Thus the book introduces the basic theory of discrete-time systems, processes and signals including discrete transforms. It explains classical digital filtering, and averaging methods to improve the signal-to-noise ratio or repetitive signals. Correlation and spectral analysis approaches to analysing signals are covered as well as methods to estimate and define unknown signals. Non-linear processing is introduced including the use of neural networks. The final chapter extends what the reader has learnt into the arena of multidimensional signals and data.
The aim of the book is not to be deeply rigorous mathematically but rather to provide full and practical explanation of the theories and concepts behind these processing techniques which are largely available today as software programs and packages.
Recent progress in the design and production of digital signal processing (DSP) devices has provided significant new opportunities to workers in the already extensive field of signal processing. It is now possible to contemplate the use of DSP techniques in cost-sensitive wide bandwidth applications, thereby making more effective use of the large body of available signal processing knowledge. Digital signal processing, long the province of telecommunications is, in both research and applications contexts, of growing importance in fields of medical signal analysis, industrial control (particularly robotics), in the analysis and synthesis of speech and in both audio and video entertainment systems. The growing demand for engineering skills in these areas has led to the writing of this book and the presentation of the material of the book at an lEE-sponsored Vacation School at the University of Leicester.
This book is different from others in the field in that it not only presents the fundamentals of DSP ranging from data conversion to z-transforms and spectral analysis, extending this into the areas of digital filtering and control, but also gives significant detail of the new devices themselves and how to use them. In addition to presenting the basic theory and describing the devices and how to design with them, the material is consolidated by extensive use of real examples in specific case studies.
The book is directed at readers with first degree level training in engineering, physical sciences or mathematics and with some understanding of electronics, and is appropriate for design engineers in industry, users of DSP devices in scientific research and in all technical development areas associated with the processing of signals for display, storage, transmission or control.
Digital Sound Studies
Mary Caton Lingold, Darren Mueller, and Whitney Trettien, editors Duke University Press, 2018 Library of Congress AZ105.D55 2018
The digital turn has created new opportunities for scholars across disciplines to use sound in their scholarship. This volume’s contributors provide a blueprint for making sound central to research, teaching, and dissemination. They show how digital sound studies has the potential to transform silent, text-centric cultures of communication in the humanities into rich, multisensory experiences that are more inclusive of diverse knowledges and abilities. Drawing on multiple disciplines—including rhetoric and composition, performance studies, anthropology, history, and information science—the contributors to Digital Sound Studies bring digital humanities and sound studies into productive conversation while probing the assumptions behind the use of digital tools and technologies in academic life. In so doing, they explore how sonic experience might transform our scholarly networks, writing processes, research methodologies, pedagogies, and knowledges of the archive. As they demonstrate, incorporating sound into scholarship is thus not only feasible but urgently necessary.
Contributors. Myron M. Beasley, Regina N. Bradley, Steph Ceraso, Tanya Clement, Rebecca Dowd Geoffroy-Schwinden, W. F. Umi Hsu, Michael J. Kramer, Mary Caton Lingold, Darren Mueller, Richard Cullen Rath, Liana M. Silva, Jonathan Sterne, Jennifer Stoever, Jonathan W. Stone, Joanna Swafford, Aaron Trammell, Whitney Trettien
This newly updated, second edition of Digital Techniques for Wideband Receivers is a current, comprehensive design guide for your digital processing work with today's complex receiver systems. Brand new material brings you up-to-date with the latest information on wideband electronic warfare receivers, the ADC testing procedure, frequency channelization and decoding schemes, and the operation of monobit receivers. The book shows you how to effectively evaluate ADCs, offers insight on building electronic warfare receivers, and describes zero crossing techniques that are critical to new receiver design. From fundamental concepts and procedures to recent technology advances in digital receivers, you get practical solutions to all your demanding wideband receiver problems. This hands-on reference is packed with 1,103 equations and 315 illustrations that support key topics covered throughout the book.
Foundations of Digital Signal Processing: Theory, algorithms and hardware design starts by introducing the mathematical foundations of DSP, assuming little prior knowledge of the subject from the reader, and moves on to discuss more complex topics such as Fourier, Laplace and digital filtering. It provides detailed information on off-line, real-time and DSP programming, and guides the reader through advanced topics such as DSP hardware design, FIR and IIR filter design and difference equation manipulation.
A CD accompanies the book. It provides the reader with programs that demonstrate equations discussed in the text and source codes to enable the reader to incorporate algorithms into their own DSP programs.
In the years since the Mars Exploration Rover Spirit and Opportunity first began transmitting images from the surface of Mars, we have become familiar with the harsh, rocky, rusty-red Martian landscape. But those images are much less straightforward than they may seem to a layperson: each one is the result of a complicated set of decisions and processes involving the large team behind the Rovers.
With Seeing Like a Rover, Janet Vertesi takes us behind the scenes to reveal the work that goes into creating our knowledge of Mars. Every photograph that the Rovers take, she shows, must be processed, manipulated, and interpreted—and all that comes after team members negotiate with each other about what they should even be taking photographs of in the first place. Vertesi’s account of the inspiringly successful Rover project reveals science in action, a world where digital processing uncovers scientific truths, where images are used to craft consensus, and where team members develop an uncanny intimacy with the sensory apparatus of a robot that is millions of miles away. Ultimately, Vertesi shows, every image taken by the Mars Rovers is not merely a picture of Mars—it’s a portrait of the whole Rover team, as well.
Nearly a decade ago, Johanna Drucker cofounded the University of Virginia’s SpecLab, a digital humanities laboratory dedicated to risky projects with serious aims. In SpecLab she explores the implications of these radical efforts to use critical practices and aesthetic principles against the authority of technology based on analytic models of knowledge.
Inspired by the imaginative frontiers of graphic arts and experimental literature and the technical possibilities of computation and information management, the projects Drucker engages range from Subjective Meteorology to Artists’ Books Online to the as yet unrealized ’Patacritical Demon, an interactive tool for exposing the structures that underlie our interpretations of text. Illuminating the kind of future such experiments could enable, SpecLab functions as more than a set of case studies at the intersection of computers and humanistic inquiry. It also exemplifies Drucker’s contention that humanists must play a role in designing models of knowledge for the digital age—models that will determine how our culture will function in years to come.
The switched-current technique is heralding a new era in analogue sampled-data signal processing. Unlike switched-capacitor circuits, switched-current circuits do not require linear floating capacitors or operational amplifiers and they are giving a renewed impetus to mixed-signal VLSI on standard digital technology. Key analogue designers from industry and academia worldwide have contributed to this first, very timely book entirely devoted to switched current analogue signal processing.
The book introduces the basic switched-current technique, reviews the state-of-theart and presents practical chip examples. Numerous application areas are described, ranging from filters and data converters to image processing applications. It also gives a very comprehensive treatment of the fundamental principles of switched-current circuits and systems.
The material in this book will be of benefit to students, both undergraduate and postgraduate, and researchers and circuit designers in academia and the electronics industry.
The Virtual Life of Film
D. N. Rodowick Harvard University Press, 2007 Library of Congress TR267.R64 2007 | Dewey Decimal 778.53
As almost every aspect of making and viewing movies is replaced by digital technologies, even the notion of "watching a film" is fast becoming an anachronism. With the likely disappearance of celluloid film stock as a medium, and the emergence of new media, what will happen to cinema--and to cinema studies? In the first of two books exploring this question, Rodowick considers the fate of film and its role in the aesthetics and culture of the twenty-first century.
Weibull Radar Clutter
Matsuo Sekine The Institution of Engineering and Technology, 1990 Library of Congress TK6580.S395 1990 | Dewey Decimal 621.3848
The material presented in this book is intended to provide the reader with a practical treatment of Weibull distribution as applied to radar systems.
Topics include general derivation of Weibull distribution, measurements of Webull-distributed clutter, comparison of Webull distribution with various distributions including Rayleigh, gamma, log-normal and k- distributions, constant false alarm rate (CFAR) detectors for Weibull clutter, non-parametric CFAR detectors, and signal detection in the time and frequency domains. In particular, the Akaike Information Criterion (AIC), which is a rigorously mathematical fit of the hypothetical distribution to the data, is emphasised.
This book is written primarily for radar engineers. It is hoped that it will also be of value to teachers and graduate students and of interest to all who are working with Weibull distribution in various fields.