Download or read book The Multipath and Fading Profile of the High Latitude Meteor Burst Communication Channel written by Jay A. Weitzen and published by . This book was released on 1986 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: High latitude propagation phenomenon such as scatter from the aurora and sporadic-E propagation can alter the communication characteristics of the high latitude meteor communication channel. This report describes the results of several experiments conducted for the purpose of characterizing the fading and multipath profile of the high latitude meteor communication channel. The effect of high latitude propagation phenomena on the capacity and reliability of meteor burst communications is discussed. Keywords include: Auroral scatter, Meteor scatter high latitude effects, multipath measurements, meteor scatter communications, and VHF propagation.
Download or read book The Mulipath and Fading Profile of the High Latitude Meteor Burst Communication Channel written by Jay A. Weitzen and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Determination of Waiting Times for Meteor Trail Returns of Specified Durations written by J. C. Ostergaard and published by . This book was released on 1991 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization of the High Latitude Meteor Burst Communications Channel at 65 67 MHz written by Rob A. Scofidio and published by . This book was released on 1987 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization of the High Latitude Meteor Burst Communications Channel at 65067 MHz written by Rob A. Scofidio and published by . This book was released on 1987 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains a summary of results obtained from the Rome Air Development Center's modified commercial meteor scatter communications link, located in Greenland. The data presented here were recorded during the months of October, November, and December 1986. A known message is repeatedly transmitted between Thule and Sondrestrom AB from which pertinent meteor scatter statistics, such as message waiting times and throughput, are calculated. Such statistics are presented in this paper. Keywords include: Meteor scatter propagation, Meteor scatter high-latitude effects, and Meteor scatter frequency dependence. (RH).
Download or read book Environmental Research Papers written by and published by . This book was released on with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1987-03 with total page 1000 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 1987 with total page 1262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Reports Awareness Circular TRAC written by and published by . This book was released on 1987-02 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index Keyword A L written by and published by . This book was released on 1987 with total page 1260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1989 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Meteor Burst Communications written by Donald L. Schilling and published by Wiley-Interscience. This book was released on 1993-04-12 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores the meteor burst channel. Leading experts in the communications field cover the research, military and commercial applications of this subject. Following an introduction to the technology, early chapters describe this channel, the theory and modeling techniques used to simulate it and the use of variable data rate transmission for efficient communication. Later chapters present a method for implementing such a system using FM techniques, compare experimental results with theory, offer additional theoretical results obtained for the variable data rate techniques and discuss the improvement obtained through the use of forward error correction coding.
Download or read book Statistical Characterization of Fading on Meteor Scatter Communication Channels written by Jay A. Weitzen and published by . This book was released on 1990 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document describes a statistical study of fading on meteor communication channels based on data obtained from the Geophysics Laboratory's High Latitude Meteor Scatter Test Bed. Meteor trails at 45, 65, and 194 MHz are classified as underdense or overdense. They are then analyzed for fades with depths exceeding 3, 6, and 9 dB relative to a 10 dB signal-to-noise threshold. Bandwidths considered vary from 100 Hz to 128 kHz. Statistics are computed as a function of frequency, time of day, and trail type for the first D seconds of a trail, where D = 50, 100, 200, 400 and 600 ms. The experiment considers fades with minimum duration of 20 ms and has a resolution of 10 ms.
Download or read book Meteor Burst Communications written by Donald L. Schilling and published by Wiley-Interscience. This book was released on 1993-04-12 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores the meteor burst channel. Leading experts in the communications field cover the research, military and commercial applications of this subject. Following an introduction to the technology, early chapters describe this channel, the theory and modeling techniques used to simulate it and the use of variable data rate transmission for efficient communication. Later chapters present a method for implementing such a system using FM techniques, compare experimental results with theory, offer additional theoretical results obtained for the variable data rate techniques and discuss the improvement obtained through the use of forward error correction coding.
Download or read book Conference Record written by and published by . This book was released on 1991 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book MILCOM88 written by and published by . This book was released on 1988 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
