Interference Potential Of Ultrawideband Signals

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Interference Potential of Ultrawideband Signals : Procedures to characterize ultrawideband emissions and measure interference susceptibility of C-band satellite digital television receivers

Electromagnetic interference

Author -
Publisher -
Pages - 73
ISBN -


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Interference Potential of Ultrawideband Signals :

Technology & Engineering

Author - Michael Cotton
Publisher - Nova Publishers
Pages - 319
ISBN - 9781600213595


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Detail - The purpose of this book is to provide data needed to predict the interference potential of various UWB signals. The results will be useful for regulatory agencies that are currently charged with defining UWB emission limits and corresponding compliance measurement procedures. They will also be useful to the ultrawideband communications industry, which will only thrive if compliance measurement procedures fairly evaluate interference potential of all UWB signals. operating narrow-band receiver and measure susceptibility of the receiver with precisely defined signal quality metrics. Data is then analysed to determine if there are common signal characteristics that predict interference potential. The victim receiver chosen for this interference susceptibility test is C-band satellite digital television (DTV). This receiver demodulates signals transmitted in the 3.7 to 4.2 GHz frequency range, which lies within the band allocated for UWB devices. than use an unpredictable live signal, to generate interference signals with a vector signal generator rather than rely solely on prototype devices, and to perform signal and system characterisation measurements primarily with the vector signal analyser to provide comprehensive data capable of being post-processed in many ways.

Introduction to Ultra Wideband for Wireless Communications :

Technology & Engineering

Author - Homayoun Nikookar, Ramjee Prasad
Publisher - Springer Science & Business Media
Pages - 188
ISBN - 9781402066337


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Detail - asakta-buddhih sarvatra . jitatma vigata-sprhah . . . . naiskarmya-siddhim paramam . sannyasenadhigacchati Detached by spiritual intelligence from everything controlling the mind, without material desires, one attains the paramount perfection in cessation of re- tions by renunciation. The Bhagvad Gita (18.49) Compared to traditional carrier-based, Ultra-Wide Band (UWB), or carrier-less, systems implement new paradigms in terms of signal generation and reception. Thus, designing an UWB communication system requires the understanding of how excess bandwidth and very low transmitted powers can be used jointly to provide a reliable radio link. UWB offers systems transceiver potential for very simple implementations. Comparison between UWB and traditional narrow-band systems highlights the following features: Large bandwidth enables very fine time-space resolution for accurate lo- tion of the UWB nodes and for distributing network time stamps. Very short pulses are effectively counter-fighting the channel effect in very dense multipath environments. Data rate (number of pulses transmitted per bit) can be traded with power emission control and distance coverage. Very low power density leads to low probability of signal detection and adds security for all the layers of the communication stack. Very low power density is obtained through radio regulation emission masks; UWB systems are suitable for coexistence with already deployed narrow-band systems.

UWB : Theory and Applications

Technology & Engineering

Author - Ian Oppermann, Matti Hämäläinen, Jari Iinatti
Publisher - John Wiley & Sons
Pages - 248
ISBN - 0470869186


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Detail - Over the past 20 years UWB has been used for radar, sensing, military communications and niche applications. However, since the FCC ruling in 2002, which allowed the commercial operation of UWB for data communications, UWB has changed dramatically. Implementation oriented, this volume explores the fundamentals of UWB technology with particular emphasis on impulse radio (IR) techniques. It explains the key physical layer aspects of UWB technology, especially in communications and in control applications, and examines the multiple access (MAC) issues which are emerging as a hot area for practical UWB systems. Offers practical information about implementation Addresses issues of modulation possibilities, appropriate circuits for UWB, an example circuit design, MAC protocol issues and use of UWB for positioning applications Includes a literature survey examining books, articles and conference papers presenting the basic features of UWB technology and current systems Features a patent database search providing a historical perspective to the state-of-the-art technology UWB Theory and Applications will be indispensable to researchers interested in the practical issues of UWB technology and realistic assumptions of UWB, as well as engineers interested in implementing UWB devices.

Ultra Wideband Signals and Systems in Communication Engineering :

Science

Author - M. Ghavami, Lachlan Michael, Ryuji Kohno
Publisher - John Wiley & Sons
Pages - 334
ISBN - 0470060506


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Detail - The thoroughly revised and updated second edition of Ultra Wideband Signals and Systems in Communication Engineering features new standards, developments and applications. It addresses not only recent developments in UWB communication systems, but also related IEEE standards such as IEEE 802.15 wireless personal area network (WPAN). Examples and problems are included in each chapter to aid understanding. Enhanced with new chapters and several sections including Standardization, advanced topics in UWB Communications and more applications, this book is essential reading for senior undergraduates and postgraduate students interested in studying UWB. The emphasis on UWB development for commercial consumer communications products means that any communication engineer or manager cannot afford to be without it! New material included in the second edition: Two new chapters covering new regulatory issues for UWB systems and new systems such as ad-hoc and sensor networks, MAC protocols and space-time coding for UWB systems IEEE proposals for channel models and their specifications Interference and coexistence of UWB with other systems UWB antennas and arrays, and new types of antennas for UWB systems such as printed bow-tie antennas Coverage of new companies working on UWB such as Artimi and UBISense UWB potential for use in medicine, including cardiology, respiratory medicine, obstetrics and gynaecology, emergency room and acute care, assistance for disabled people, and throat and vocals Companion website features a solutions manual, Matlab programs and electronic versions of all figures.

Ultra-wideband Radar Technology :

Technology & Engineering

Author - James D. Taylor
Publisher - CRC Press
Pages - 424
ISBN - 9781420037296


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Detail - In 1995, James D. Taylor's Introduction to Ultra-Wideband Radar Systems introduced engineers to the theory behind a promising new concept for remote sensing. Since then, the field has undergone enormous growth with new applications realized and more applications conceptualized at a remarkable pace. However, understanding ultra-wideband (UWB) radar requires a new philosophical approach. Concepts such as radar cross section will have new meanings as range resolution becomes smaller than the target. Ultra-Wideband Radar Technology is a guide to the future of radar by an international team of experts. They present the problems, solutions, and examples of UWB radar remote sensing. Chapters discuss the theory and ideas for future systems development, and show the potential capabilities. The writers present concepts such as the differences between UWB and conventional radars, improving over-resolved target detection, receivers and waveforms, micropower systems, high power switching, and bistatic radar polarimetry. Finding comparable information elsewhere might require consulting hundreds of other books, technical journals, and symposium proceedings. Ultra-Wideband Radar Technology offers a unique opportunity to explore the theory, applications, and technology of UWB radar within a single source.

Ultra Wideband Systems : Technologies and Applications

Technology & Engineering

Author - Roberto Aiello, Ph.D., Anuj Batra, Ph.D.
Publisher - Elsevier
Pages - 344
ISBN - 0080543340


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Detail - Ultra wideband technology turns the radio spectrum available to wireless applications from a country road into a high-speed ten lane super freeway, and the destination is the future of wireless technology. UWB is a huge leap forward because it offers wide bandwidth with little interference, allowing multiple UWB signals to share a single channel. This multi-author volume, compiled under the guidance of Dr. Roberto Aiello, introduces the theory and concepts behind ultra wideband (UWB) systems as well as their applications. Authors include those involved in creating the UWB standards, researchers, and applications specialists. This book has been broken down into three parts: introduction to UWB, different techniques available, and applications. Within these sections topics covered are UWB spectrum and regulations, UWB channels, modulation techniques, antennas, signal propagation, and UWB transceiver architectures. This book has all the information RF/wireless engineers will need to understand this burgeoning technology. *An all-star list of contributors covers the subject more authoritatively than any single author could *Discusses U.S. and international ultra wideband regulations *Includes material on antenna systems and signal propagation at ultra wideband frequencies

Introduction to Ultra-Wideband Radar Systems :

Technology & Engineering

Author - James D. Taylor
Publisher - CRC Press
Pages - 688
ISBN - 9780849344404


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Detail - This introductory reference covers the technology and concepts of ultra-wideband (UWB) radar systems. It provides up-to-date information for those who design, evaluate, analyze, or use UWB technology for any application. Since UWB technology is a developing field, the authors have stressed theory and hardware and have presented basic principles and concepts to help guide the design of UWB systems. Introduction to Ultra-Wideband Radar Systems is a comprehensive guide to the general features of UWB technology as well as a source for more detailed information.

RF & Wireless Technologies :

Technology & Engineering

Author - Bruce Alan Fette
Publisher - Newnes
Pages - 827
ISBN - 0750685816


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Detail - The Newnes Know It All Series takes the best of what our authors have written to create hard-working desk references that will be an engineer's first port of call for key information, design techniques and rules of thumb. Guaranteed not to gather dust on a shelf! RF (radio frequency) and wireless technologies drive communication today. This technology and its applications enable wireless phones, portable device roaming, and short-range industrial and commercial application communication such as the supply chain management wonder, RFID. Up-to-date information regarding software defined RF, using frequencies smarter, and, using more of the spectrum, with ultrawideband technology is detailed. Chapter 1: Survey of RF and Wireless Technology Chapter 2: Communications Protocols and Modulation Chapter 3: Transmitters Chapter 4: Receivers Chapter 5: Radio Propagation Chapter 6: Antenna Fundamentals I Chapter 7: Antenna Fundamentals II. Chapter 8: Basics of Wireless Local Area Networks Chapter 9: Outdoor Networks. Chapter 10: Voice Over Wi-Fi and Other Wireless Technologies Chapter 11: Security in Wireless Local Area Networks Chapter 12: System Planning Chapter 13: System Implementation, Testing, and Optimization Chapter 14: Next Generation Wireless Networks Chapter 15: Mobile Ad Hoc Networks Chapter 16: Wireless Sensor Networks Chapter 17: Reliable Wireless Networks for Industrial Networks Chapter 18: Software-Defined Radio Chapter 19: The Basics of Radio Frequency Identification (RFID) Technology Chapter 20: UWB Spectrum and Regulation Chapter 21: Interference and Coexistence Chapter 22: Direct Sequence UWB Chapter 23: “Multiband Approach to UWB Chapter 24: History and Background of Cognitive Radio Chapter 25: The Software Defined Radio as a Platform for Cognitive Radio Chapter 26: Cognitive Radio: The Technologies Chapter 27: Spectrum Awareness Chapter 28: Direct Sequence and Frequency Hopping Spread Spectrum Chapter 29: RF Power Amplifiers Chapter 30: Phase Locked Loop Techniques in Modern Communications Systems Chapter 31 Orthogonal Frequency Division Multiplexing (OFDM) *A 360 degree view from best-selling authors including Roberto Aiello, Bruce Fette, and Praphul Chandra *Hot topics covered including ultrawideband and cognitive radio technologies *The ultimate hard-working desk reference: all the essential information, techniques, and tricks of the trade in one volume

Interference Mitigation Techniques to Support Coexistence of Ultra-WideBand Systems :

Author - Md. Abdur Rahim
Publisher - Jörg Vogt Verlag
Pages - 171
ISBN - 3938860324


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Ultra-Wideband Communications : Fundamentals and Applications

Computers

Author - Faranak Nekoogar
Publisher - Prentice Hall
Pages - 240
ISBN - 9780132782234


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Detail - The Easy-to-Understand, Up-to-the-Minute Guide to UWB Technologies, Applications, and Markets Ultra-wideband's exceptional capacity and power characteristics make it one of this generation's most exciting technologies. From wireless communications to entertainment, and from the automotive industry to homeland security, UWB is poised to revolutionize an extraordinary array of applications. Now, one of the field's leading experts presents the most accessible and up-to-date UWB guidebook ever written. Dr. Faranak Nekoogar explains UWB principles and technologies simply and clearly, addressing key issues such as pulse generation, modulation, multiple access techniques, and interference. In addition, she presents a complete market analysis--identifying the most promising applications, initial and future markets, and regulatory trends. Ultra-Wideband Communications: Fundamentals and Applications will be indispensable for everyone interested in UWB technology, regardless of their radio frequency experience: engineers, managers, marketers, analysts, purchasing agents, business strategists, journalists, and students alike. Inside you will find An introduction to UWB: history, background, advantages, and challenges How UWB compares to narrowband and spread-spectrum wideband systems Fundamentals of UWB short-pulse generation and propagation Competing single-band and multiband approaches UWB antenna concepts and their implications for systems and networks Popular modulation/demodulation schemes and multiple-access techniques Coexistence with today's WLAN, GPS, and cellular phone systems Current and evolving FCC and worldwide regulation of UWB technology In-depth coverage of UWB applications and markets, with adoption timelines and forecasts through 2010 A comprehensive, easy-to-understand glossary and extensive references for further reading

UWB Communication Systems : A Comprehensive Overview

Technology & Engineering

Author - Maria-Gabriella Di Benedetto
Publisher - Hindawi Publishing Corporation
Pages - 497
ISBN - 9775945100


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Detail - Ultrawideband (UWB) communication systems offer an unprecedented opportunityto impact the future communication world. The enormous available bandwidth, the wide scope of the data rate / rangetrade-off, as well as the potential for very low-cost operation leading topervasive usage, all present a unique opportunity for UWB systems to impactthe way people and intelligent machines communicate and interact with theirenvironment. The aim of this book is to provide an overview of the state of the art of UWBsystems from theory to applications. Due to the rapid progress of multidisciplinary UWB research, such an overviewcan only be achieved by combining the areas of expertise of severalscientists in the field. More than 30 leading UWB researchers and practitioners have contributed tothis book covering the major topics relevant to UWB. These topics includeUWB signal processing, UWB channel measurement and modeling, higher-layerprotocol issues, spatial aspects of UWB signaling, UWB regulation andstandardization, implementation issues, and UWB applications as well aspositioning. The book is targeted at advanced academic researchers, wireless designers, and graduate students wishing to greatly enhance their knowledge of allaspects of UWB systems