Download or read book Hf Communication Effects Experimental Justification of the Gaussian Channel Model written by B. C. Tupper and published by . This book was released on 1965 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theoretical expressions for joint probability-density and distribution functions for phase difference and log-envelope difference for a Gaussian channel are derived. Experimental data collected from an HF phase-stable transmission are compared with the theoretical densities and distributions by using the statistical parameter of correlation coefficient. An estimate of the relationship between the correlation coefficient and channel frequency spread is derived and compared with experimental data. Agreement between correlation-coefficient estimates from log-envelope change and phase change is discussed. The experimental envelope distributions of the received signal are compared with the Rayleigh, Rician, and log-normal distributions, and deviations are discussed. Alternative envelope distributions based on a conditional Rayleigh distribution are also considered. (Author).
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stochastic Effects on Oblique HF Propagation written by L. J. Nickisch and published by . This book was released on 1986 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book HF TIME AND FREQUENCY DISPERSION EFFECTS EXPERIMENTAL VALIDATION OF AN FSK ERRORRATE MODEL written by and published by . This book was released on 1965 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experiment has been conducted to determine the sensitivity of an HF FSK communications system to time and frequency-selective fading phenomena. Binary error rate was measured on AN/FGC-29 teletype terminal equipment over an HF path from Fort Monmouth, New Jersey to Palo Alto, California in the fall of 1964. Simultaneous measurements were made of channel signal-to-noise ratios, channel time-delay profiles, channel Doppler-shift profiles, and signal correlation between spaced antennas. Instrumentation included a phase-stable transmitter-receiver, an oblique-incidence ionospheric sounder, and a special correlation meter. The measured error rates were compared to those predicted by a mathematical model. The model for the channel considers randomly time-varying and frequency-selective effects appropriate for the HF propagation mechanism. The system model approximates the AN/FGC-29 system. Theoretical and measured error-rate curves are presented and discussed. Measured system performance showed a well-defined sensitivity to channel time- and frequency-selective effects. The asymptotic error rates measured at high signal-to-noise ratios are in reasonable agreement with those predicted from the model.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Propagation Impact on Modern HF Communications System Design written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development and published by . This book was released on 1986 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Development Reports written by and published by . This book was released on 1967 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1991 with total page 1656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements written by and published by . This book was released on 1967 with total page 1182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research and Development Reports written by and published by . This book was released on 1967 with total page 1150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Engineering Index Annual written by and published by . This book was released on 1989 with total page 2152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its creation in 1884, Engineering Index has covered virtually every major engineering innovation from around the world. It serves as the historical record of virtually every major engineering innovation of the 20th century. Recent content is a vital resource for current awareness, new production information, technological forecasting and competitive intelligence. The world?s most comprehensive interdisciplinary engineering database, Engineering Index contains over 10.7 million records. Each year, over 500,000 new abstracts are added from over 5,000 scholarly journals, trade magazines, and conference proceedings. Coverage spans over 175 engineering disciplines from over 80 countries. Updated weekly.
Download or read book Advisory Group for Aerospace Research and Development Index of Publications written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development and published by . This book was released on 1987 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1970 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Human Factors Engineering Bibliographic Series written by and published by . This book was released on 1966 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Space Communications Theory and Applications Volume 1 Modulation and Channels a Bibliography written by and published by . This book was released on 1965 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fundamentals of Wireless Communication written by David Tse and published by Cambridge University Press. This book was released on 2005-05-26 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook takes a unified view of the fundamentals of wireless communication and explains cutting-edge concepts in a simple and intuitive way. An abundant supply of exercises make it ideal for graduate courses in electrical and computer engineering and it will also be of great interest to practising engineers.
