Download or read book Phase lock Demodulation for Wideband Signals written by John C. Bry and published by . This book was released on 1962 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phase Locked Demodulation of Weak Signals written by William Henry Kind and published by . This book was released on 1985 with total page 124 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 An Analysis of Threshold Characteristics of Quasi linearized Phase locked Loop Demodulation for Wideband Frequency modulated Signals written by Chun Kun Ha and published by . This book was released on 1968 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phaselock Tecniques second Edition written by Floyd M. Gardner and published by Wiley-Interscience. This book was released on 1979-05-10 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of Phaselock Techniques is -- as was the first -- the standard reference on the subject. Greatly expanded and largely rewritten to reflect a better understanding of the subject, the book presents much new material, some published here for the first time. Explanation of fundamentals is improved and expanded, and description of applications is greatly increased. The first portion of the book is a well-organized review of the fundamentals of phaselock, as well as a discussion of the underlying problems faced by designers. Most of this mateiral has been rewritten from the first edition. The material that follows deals with practical aspects of component circuits and with rational procedures for deciding upon phaselock loop parameters. The remaining chapters provide engineering descriptions and analyses of applications of phaselock. Most of this material is unique.Included are discussions of phaselocked modulators and demodulators, sythesizers, receivers, transponders, oscillator stabilizers, and data synchronizers.

Download or read book Phase Locked and Frequency Feedback Systems written by Jacob Klapper and published by Elsevier. This book was released on 2012-12-02 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phase-Locked and Frequency-Feedback Systems: Principles and Techniques presents the operating principles and methods of design of phase-locked and frequency-feedback systems. This book is divided into 10 chapters that provide step-by-step design procedures and graphical aids, with illustrations bearing on real problems experienced in these systems. This work specifically tackles the application of these systems as FM demodulators with lowered thresholds. Chapters 1 and 2 deal briefly with the elements of linear systems, feedback theory, and noise, providing the minimum background for the material presented in the remainder of the text. Chapter 3 describes the characteristics of the major components that comprise the loops and the performance of the conventional and multi-loop FM demodulators. Chapters 4 to 7 present the basic describing equations and design for the FM feedback (FMFB) and phase-locked loop (PLL). These chapters further illustrate step-by-step design procedures with performance characteristics for low-threshold angle demodulation using typical design examples. Chapter 8 highlights the design principles, which are extended to the design of advanced demodulators featuring demodulation thresholds lower than those of the simple PLL or FMFB. Chapter 9 focuses on digital FM demodulation and PLL applications other than FM demodulation. Lastly, Chapter 10 presents the methods of testing and evaluating loop performance. Undergraduate and graduate level students, as well as practicing engineers, will find this book invaluable.

Download or read book Digital Subsampling Phase Lock Techniques for Frequency Synthesis and Polar Transmission written by Nereo Markulic and published by Springer. This book was released on 2019-01-30 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explains concepts behind fractional subsampling-based frequency synthesis that is re-shaping today’s art in the field of low-noise LO generation. It covers advanced material, giving clear guidance for development of background-calibrated environments capable of spur-free synthesis and wideband phase modulation. It further expands the concepts into the field of subsampling polar transmission, where the newly developed architecture enables unprecedented spectral efficiency levels, unquestionably required by the upcoming generation of wireless standards.

Download or read book Phase locked Loops written by Paul V. Brennan and published by . This book was released on 1996 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written from an engineering viewpoint, this book is a concise guide to the theory and design of phase-locked loop circuits. It includes novel techniques and analytical treatments as well as worked examples.

Download or read book Phase lock Demodulation of a PM Signal Contaminated with Incidental AM written by George B. Robinson and published by . This book was released on 1972 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Signals from phase-modulated satellite transmitters usually exhibit some degree of incidental amplitude modulation. The effects of incidental AM are analyzed when this type of signal is demodulated by a phase-lock receiver which does not employ a limiter preceding the loop phase detector. The presence of incidental AM causes a reduction in the receiver output signal-to-noise ratio. The tolerable level of AM decreases in proportion to the phase modulation index Beta. For a square-wave modulating signal, a 1 db reduction results at the receiver PM channel output when Beta = 1 radian and the percentage of AM = 23, Beta = 1.2 radians and the percentage of AM = 16, or Beta = 1.5 radians and the percentage of AM = 4. Although only the PM channel of the receiver is used ordinarily, utilizing both the AM and PM channel by summing offers an improvement in S/N relative to the S/N ratio of the PM channel if the percentage of incidental AM is greater than fifteen.

Download or read book Diversity lock Phase Demodulator written by V. J. DiLosa and published by . This book was released on 1966 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wideband Phase locked Loop Demodulator for Satellite Video Transmissions written by Leslie Levitt and published by . This book was released on 1985 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phase locked Loops Their Application written by William C. Lindsey and published by . This book was released on 1978 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Seventy Megahertz Wideband Phase lock Loop Frequency Demodulator written by Eugene Edwin Mayle and published by . This book was released on 1986 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Technical Report written by and published by . This book was released on 1971 with total page 1054 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book PHASE LOCK DEMODULATION OF SINUSOIDAL FM written by F. F. YATES and published by . This book was released on 1963 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phase-Lock demodulation of an FM signal, where the modulating function is a sinusoid, is treated as a problem in tracking a sweeping carrier. An expression is obtained for the maximum output signal to noise ratio versus the input signal to noise density ratio in an information bandwidth under conditions of a solid loop lock. A similiar expression is derived for threshold conditions. (Author).

Download or read book Final Report on the Relay I Program written by Goddard Space Flight Center and published by . This book was released on 1965 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Techniques for Eliminating Baseband Voice Interference with Telemetry for the Apollo Communication System written by G. Dickey Arndt and published by . This book was released on 1970 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excessive telemetry error rates caused by baseband voice interference occur in several modes of the Apollo communication system. Demodulation, using essentially nonlinear quadrature phase detection, causes voice terms to appear in the telemetry spectrum. In this report, two methods which effectively linearize the demodulation process are used to reduce the voice interference. One method uses a negative feedback loop incorporated around the present nonlinear phase detector. The other method uses a frequency-modulation demodulator preceded by a composite filter containing three band-pass filters in parallel. The theoretical development, construction, and testing of both methods are presented. Significant improvement in telemetry performance is obtained. Results show that voice interference to both the 1.6- and 51.2-kbps telemetry data is negligible for all spacecraft/ground-station conditions when using either of the two methods. It is recommended that the negative-feedback-loop method be implemented in the Manned Space Flight Network ground stations as a result of its relative simplicity and superior performance.