Download or read book Wideband Frequency Modulation written by Joseph A. Calabria and published by . This book was released on 1971 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wideband FM Techniques for Low Power Wireless Communications written by John Gerrits and published by River Publishers. This book was released on 2016-06-15 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra Wideband (UWB) communications are poised to enable short-range applications, such as remote health monitoring (e-health) and home or office automation. Sensor networks are also suitable candidates for UWB since the low radiated power of the UWB transmitter enables low DC power consumption, yielding long battery life and the possibility to use energy scavenging. Size and cost constraints require a low-complexity approach that allows multiple users to share the same RF bandwidth, and offers robustness to interference, frequency-selective multipath and antenna mismatch. Wideband FM Techniques for Low-Power Wireless Communications presents research and applications that have taken place in UWB Communications over the past years. This book is being published posthumously in agreement with the authors’ former colleagues from both the Swiss Center for Electronics and Microtechnology (CSEM) and Delft University of Technology in The Netherlands.

Download or read book Spectral Aspects of a Wideband Frequency Modulation Mobile Radio System Employing Time compression Multiplexing written by Barry Skuse and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Demodulation of Wide band Frequency Modulation by a Phase lock Technique written by Richard C. Booton and published by . This book was released on 1964 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wideband FM Techniques for Low Power Wireless Communications written by John F.M. Gerrits and published by CRC Press. This book was released on 2022-09-01 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra Wideband (UWB) communications are poised to enable short-range applications, such as remote health monitoring (e-health) and home or office automation. Sensor networks are also suitable candidates for UWB since the low radiated power of the UWB transmitter enables low DC power consumption, yielding long battery life and the possibility to use energy scavenging. Size and cost constraints require a low-complexity approach that allows multiple users to share the same RF bandwidth, and offers robustness to interference, frequency-selective multipath and antenna mismatch. Wideband FM Techniques for Low-Power Wireless Communications presents research and applications that have taken place in UWB Communications over the past years. This book is being published posthumously in agreement with the authors’ former colleagues from both the Swiss Center for Electronics and Microtechnology (CSEM) and Delft University of Technology in The Netherlands.

Download or read book Demolation of Wide band Frequency Modulation by a Phase lock Technique written by Richard C. Booton and published by . This book was released on 1964 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Early FM Radio written by Gary L. Frost and published by JHU Press. This book was released on 2010-04-01 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: The commonly accepted history of FM radio is one of the twentieth century’s iconic sagas of invention, heroism, and tragedy. Edwin Howard Armstrong created a system of wideband frequency-modulation radio in 1933. The Radio Corporation of America (RCA), convinced that Armstrong’s system threatened its AM empire, failed to develop the new technology and refused to pay Armstrong royalties. Armstrong sued the company at great personal cost. He died despondent, exhausted, and broke. But this account, according to Gary L. Frost, ignores the contributions of scores of other individuals who were involved in the decades-long struggle to realize the potential of FM radio. The first scholar to fully examine recently uncovered evidence from the Armstrong v. RCA lawsuit, Frost offers a thorough revision of the FM story. Frost’s balanced, contextualized approach provides a much-needed corrective to previous accounts. Navigating deftly through the details of a complicated story, he examines the motivations and interactions of the three communities most intimately involved in the development of the technology—Progressive-era amateur radio operators, RCA and Westinghouse engineers, and early FM broadcasters. In the process, Frost demonstrates the tension between competition and collaboration that goes hand in hand with the emergence and refinement of new technologies. Frost's study reconsiders both the social construction of FM radio and the process of technological evolution. Historians of technology, communication, and media will welcome this important reexamination of the canonic story of early FM radio.

Download or read book Wideband Radio Frequency Modulation Dynamic Access to Mobile Information Networks written by and published by . This book was released on 2003 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radio communications is in worldwide flux. There are pressures from the commercial sector for additional frequency spectrum to provide new services; there is significant demand from the Department of Defense (DoD) to increase communications capacity around the world and in multiple contexts/environments; and there are multiple proposals for innovative radio architectures that promise greatly enhanced radio frequency capacity. This report discusses these aspects and presents a set of recommendations aimed at moving in a comprehensive manner to a coherent communications system for the Department of Defense.

Download or read book Report of the Defense Science Board Task Force on Wideband Radio Frequency Modulation written by United States. Defense Science Board. Task Force on Wideband Radio Frequency Modulation and published by . This book was released on 2003 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This report addresses near-term and far-term wideband radio frequency research and development issues and spectrum management and policy issues for the Department of Defense. The task force supports actions by the Department of Defense to take the lead in offering new radio communications technologies and new strategies and policies to the larger national and international communities"--Page 3.

Download or read book Reactance Switching a Method of Producing Wide band Frequency Modulation written by J. W. Kearney and published by . This book was released on 1944 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of the Defense Science Board Task Force on Wideband Radio Frequency Modulation written by Gary Minden and published by . This book was released on 2003 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Method of Lowering the Noiseproofness Threshold of Braodband Frequency Modulation and Phase Modulation Receivers written by L. Ya Kantor and published by . This book was released on 1973 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The patent describes a system for lowering the noiseproof threshold of wideband FM and PM receivers by a relative increase in the carrier level of the signal realized after the preliminary transformation of the wideband signal into narrow band. The transformed narrow band signal feeds into two parallel filters, one of which (narrow band) admits the carrier and weakens the side frequencies and the other (wideband) uniformly weakens the entire spectrum of the narrow band FM or PM signal.

Download or read book A Digitally Controlled Wide band Frequency Modulator written by Imran Bashir and published by . This book was released on 2014 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a wide-band frequency modulator in which the oscillator frequency is modulated by using an injection locking technique. This novel architecture is an alternative to capacitive tuning and provides a larger and linear tuning range. The oscillator is injection locked to a time delayed version of itself. The oscillator frequency is tuned by varying the phase of the injected signal. The phase delay adjustment is controlled by a digital phase rotator (DPR) that interpolates between the phases of the two input signals. The circuits used to generate the injection signal are small and low-power. The operation and performance of this circuit has been verified in TSMC 40 nm 1P7M CMOS process technology.

Download or read book Wide Band Transmission System Using Square Wave Frequency Modulation written by Omran F. Shakoura and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Amplitude Modulation Free Wide Band Frequency Modulated Oscillator written by Dick Frank Nelson and published by . This book was released on 1951 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Frequency Modulation Receivers written by Alfred B. Cook and published by Prentice Hall. This book was released on 1968 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Frequency Modulation Theory written by Jacques Fagot and published by Elsevier. This book was released on 2014-07-03 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electronics and Instrumentation, Volume 11: Frequency Modulation Theory: Application to Microwave Links provides information pertinent to the fundamental aspects of microwave beam techniques. This book discusses the development in the application of frequency modulation. Organized into five chapters, this volume begins with an overview of the transfer of the radio-frequency energy over a given path. This text then examines all the general problems of frequency modulation, including principle, band covered, distortion, and improvement of the signal-to-noise ratio. Other chapters deal with propagation distortion that is apparent in a variable-velocity guided transmission channel. This book discusses as well the complete problem of telephony and television transmission over radio links and considers the requisite conditions for meeting the international standards. The final chapter deals with all the applied techniques concerned with radio link equipment that deals with a large number of general problems. This book is a valuable resource for students and engineers.