Download or read book Reflective Impulse Radios written by Yuhui Chen and published by . This book was released on 2013 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging wireless sensor networks display a severe asymmetry between the up and down links. An alternative communication architecture, reflective impulse radio, is proposed to address such design challenges. It operates from the principles of passive transmission and pulse based modulation, readily used in radio frequency identification (RFID) and ultra wide-band (UWB) technologies respectively. By employing both schemes in conjunction however, it achieves ultra low power consumption and high data rate simultaneously. This dissertation begins by examining future wireless sensor applications and presenting the link asymmetry. The alternative architecture is then introduced and its operation principles explained. A step-by-step design procedure follows, accompanied by the implementation of a miniature biomedical implant transmitter as a design example. Potential challenges and mitigation techniques are also discussed. Key advantages of the proposed architecture include ultra low power consumption, simple circuitry (hence high reliability and low cost), and broad range of scalability. Measurement results of the biomedical example are subsequently presented, before a short conclusion is given in the end. While originated for wireless sensor networks, the proposed architecture can be applied to many other applications facing similar communication challenges.
Download or read book Realization Limits of Impulse Radio UWB Indoor Localization Systems written by Zwirello, Lukasz and published by KIT Scientific Publishing. This book was released on 2014-05-06 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, the realization limits of an impulse-based Ultra-Wideband (UWB) localization system for indoor applications have been thoroughly investigated and verified by measurements. The analysis spans from the position calculation algorithms, through hardware realization and modeling, up to the localization experiments conducted in realistic scenarios. The main focus was put on identification and characterization of limiting factors as well as developing methods to overcome them.
Download or read book Antenna and Sensor Technologies in Modern Medical Applications written by Yahya Rahmat-Samii and published by John Wiley & Sons. This book was released on 2021-02-25 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to the theory and recent development in the medical use of antenna technology Antenna and Sensor Technologies in Modern Medical Applications offers a comprehensive review of the theoretical background, design, and the latest developments in the application of antenna technology. Written by two experts in the field, the book presents the most recent research in the burgeoning field of wireless medical telemetry and sensing that covers both wearable and implantable antenna and sensor technologies. The authors review the integrated devices that include various types of sensors wired within a wearable garment that can be paired with external devices. The text covers important developments in sensor-integrated clothing that are synonymous with athletic apparel with built-in electronics. Information on implantable devices is also covered. The book explores technologies that utilize both inductive coupling and far field propagation. These include minimally invasive microwave ablation antennas, wireless targeted drug delivery, and much more. This important book: Covers recent developments in wireless medical telemetry Reviews the theory and design of in vitro/in vivo testing Explores emerging technologies in 2D and 3D printing of antenna/sensor fabrication Includes a chapter with an annotated list of the most comprehensive and important references in the field Written for students of engineering and antenna and sensor engineers, Antenna and Sensor Technologies in Modern Medical Applications is an essential guide to understanding human body interaction with antennas and sensors.
Download or read book Ultra Wideband Radio Technologies for Communications Localization and Sensor Applications written by Reiner Thomä and published by BoD – Books on Demand. This book was released on 2013-03-13 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra-Wideband Radio (UWB) earmarks a new radio access philosophy and exploits several GHz of bandwidth. It promises high data rate communication over short distances as well as innovative radar sensing and localization applications with unprecedented resolution. Fields of application may be found, among others, in industry, civil engineering, surveillance and exploration, for security and safety measures, and even for medicine. The book considers the basics and algorithms as well as hardware and application issues in the field of UWB radio technology for communications, localization and sensing based on the outcome of DFG's priority-funding program "Ultra-Wideband Radio Technologies for Communications, Localization and Sensor Applications (UKoLoS)".
Download or read book CMOSET 2008 Circuits and Systems Design Track Presentation Slides written by CMOS Emerging Technologies Research and published by CMOS Emerging Technologies. This book was released on with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Impulse written by David Lewis and published by Harvard University Press. This book was released on 2013-10-01 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Impulse explores what people do despite knowing better, along with snap decisions that occasionally enrich their lives. This eye-opening account looks at two kinds of thinking--one slow and reflective, the other fast but prone to error--and shows how our mental tracks switch from the first to the second, leading to impulsive behavior.
Download or read book Cognitive Radio and its Application for Next Generation Cellular and Wireless Networks written by Hrishikesh Venkataraman and published by Springer Science & Business Media. This book was released on 2012-04-28 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a broad introduction to Cognitive Radio, which attempts to mimic human cognition and reasoning applied to Software Defined Radio and reconfigurable radio over wireless networks. It provides readers with significant technical and practical insights into different aspects of Cognitive Radio, starting from a basic background, the principle behind the technology, the inter-related technologies and application to cellular and vehicular networks, the technical challenges, implementation and future trends. The discussion balances theoretical concepts and practical implementation. Wherever feasible, the different concepts explained are linked to application of the corresponding scheme in a particular wireless standard. This book has two sections: the first section begins with an introduction to cognitive radio and discusses in detail various, inter-dependent technologies such as network coding, software-based radio, dirty RF, etc. and their relation to cognitive radio. The second section deals with two key applications of cognitive radio – next generation cellular networks and vehicular networks. The focus is on the impact and the benefit of having cognitive radio-based mechanisms for radio resource allocation, multihop data transmission, co-operative communication, cross-layer solutions and FPGA-level framework design, as well as the effect of relays as cognitive gateways and real-time, seamless multimedia transmission using cognitive radio.
Download or read book Radio Frequency Integrated Circuits and Technologies written by Frank Ellinger and published by Springer Science & Business Media. This book was released on 2008-09-11 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: The striking feature of this book is its coverage of the upper GHz domain. However, the latest technologies, applications and broad range of circuits are discussed. Design examples are provided including cookbook-like optimization strategies. This state-of-the-art book is valuable for researchers as well as for engineers in industry. Furthermore, the book serves as fruitful basis for lectures in the area of IC design.
Download or read book Intelligent Reflecting Surfaces in Wireless Communication Systems written by Li, Yueheng and published by KIT Scientific Publishing. This book was released on 2024-02-23 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accompanied with the development of the wireless communication technologies, the high data traffic is more necessary for civil and industrial applications than ever The concept of an intelligent reflective surface (IRS) has attracted considerable attention recently as a low-cost solution. As the main contribution, the dissertation creates new state-of-the-art and formulates a solid milestone for the IRS research field.
Download or read book Ultrawideband Short Pulse Radio Systems written by Vladimir I. Koshelev and published by Artech House. This book was released on 2017-04-30 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: This resource provides a comprehensive treatment of the methods, analysis, and practice of impulse and ultrawideband (UWB) systems. Sources, antennas, propagation, electromagnetic theory, and actual practical systems are explored.This book provides novel perspective on impulse and short-pulse wireless engineering along with practical guidance on how to build antennas and radio hardware for high-power impulse signals. Theoretical and experimental results in the time-frequency domain are presented. The book explains and discusses the scattering of UWB electromagnetic pulses by conducting and dielectric objects. Impulse responses of objects and propagation channels are explored with details of signal models and their spectral characteristics and uses of regularization of a Kramers-Kroning type relation for estimating transfer functions. Readers gain insight into the development of high-power sources of UWB radiation with megavolt effective potential on the base of combined antenna arrays excited with bipolar voltage pulses. This in-depth volume includes chapters on receiving antennas, transmitting antennas, and antenna arrays along with details on high-power UWB radiation sources as well as problem sets.
Download or read book Antarctic Journal of the United States written by and published by . This book was released on 1977 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Official Gazette of the United States Patent Office written by United States. Patent Office and published by . This book was released on 1964-12 with total page 1240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physical Foundations of the Millimeter and Submillimeter Waves Technique V 2 written by V. P. Ščestopalov and published by VSP. This book was released on 1997-08 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: The developments in physics, biology and astronomy, as well as radar and communication technology, remote sensing and spectroscopy have led to a sharp increase in the investigations of electromagnetic millimeter and submillimeter waves with the lengths 10--1 and 1--0.1 mm. These volumes reflect the results of extensive research in this field and attempt to destroy stereotypes established during the long years of large-scale modeling in the millimeter and submillimeter wavelength ranges and to develop new concepts. The first volume (Open Structures) deals with the results of theoretical and experimental studies of open electrodynamic structures (open waveguides, open resonators, diffractional gratings) allowing the determination of the characteristics of various devices used in millimeter and submillimeter technology. The second volume (Sources. Element Base. Radio Systems: Novel Scientific Trends) presents the problems of creating independent units and radiosystems of the millimeter and submillimeter wavelength ranges and the justification of their physical operating principles. This includes the mechanism of generating volume waves by electron flows moving close to a grating, excitation of fields in open resonators and waveguides with inclusion, and other phenomena.
Download or read book NASA Thesaurus written by and published by . This book was released on 1988 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radio News written by and published by . This book was released on 1926 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some issues, 1943-July 1948, include separately paged and numbered section called Radio-electronic engineering edition (called Radionics edition in 1943).
Download or read book Ultra Wideband Short Pulse Electromagnetics 6 written by Eric L. Mokole and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Sixth Conference on Ultra-Wideband, Short-Pulse Electromagnetics (UWB SP6), chaired by Eric Mokole of the United States Naval Research Laboratory (NRL) and hosted by the NRL and the United States Naval Academy (USNA), was held at the USNA in Annapolis Maryland (USA) from 3-7 June 2002. UWB SP6 was part of the AMEREM 2002 Symposium, chaired by Terence Wieting of the NRL. AMEREM 2002 continued the series of international conferences that were held in: Brooklyn New York at the Polytechnic University in 1992 and 1994; Albuquerque New Mexico in 1996 as part of AMEREM '96; Tel-Aviv Israel in 1998 as part of EUROEM '98; and Edinburgh Scotland in 2000 as part of EUROEM 2000. The next conference (UWB SP7) will be held from 12-16 July 2004 at Otto von Guericke University in Magdeburg Germany (EUROEM 2004) and will be chaired by Frank Sabath. The purpose of these meetings is: to focus on advanced technologies for the generation, radiation, and detection of ultrawideband (UWB) short-pulse signals, taking into account their propagation about, scattering from, and coupling to targets and media of interest; to report on developments in supporting mathematical and numerical methods; and to describe current and potential future applications of the technology. The session topics of UWB-SP6 included electromagnetic theory, scattering, UWB antennas, UWB systems, ground penetrating radar (GPR), pulsed,. power generation, time-domain computational electromagnetics, UWB compatibility, target detection and discrimination, propagation through dispersive media, and wavelet and multi-resolution techniques.
Download or read book Radio TV News written by and published by . This book was released on 1923 with total page 1594 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some issues, Aug. 1943-Apr. 1954, are called Radio-electronic engineering ed. (called in 1943 Radionics ed.) which include a separately paged section: Radio-electronic engineering (varies) v. 1, no. 2-v. 22, no. 7 (issued separately Aug. 1954-May 1955).
