Download or read book Airborne Tests of Meteor burst Communications written by I. Roth and published by . This book was released on 1958 with total page 58 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 Meteor Burst Communications MBC Throughput Improvement Tests written by and published by . This book was released on 1993 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simulation Model of a Meteor Burst Communication System for Data Transmission Protocol Evaluation written by Donald D. Conklin and published by . This book was released on 1986 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been a recent dramatic Air Force interest in meteor burst communications. Due to the ability of a meteor trail to support propagation in the lower VHF band (40 to 100 MHz), it offers the potential for providing relatively survivable communications under disturbed ionospheric conditions. Meteor burst communication system performance and the chances of survivability could be increased if modifications were made in the current data transmission protocol used. A computer simulation model was developed to emulate a high latitude point to point meteor burst communication network. This unique model, written in the Pascal incorporates statistical meteor trial data collected by the High Latitude Meteor Scatter Test Bed, located in Northern Greenland. Measured meteor trail parameters used in the simulation model include average burst durations and interval between bursts for both underdense and oversense type meteor trail occurrences. A description of the developed simulation model is presented, as well as a discussion on how the simulation model was validated and used to test several modifications to the existing data transmission protocol.

Download or read book U S Government Research Reports written by and published by . This book was released on 1958 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The NBS Meteor burst Propagation Project written by Charles E. Hornback and published by . This book was released on 1960 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CSC Meteor Burst Model Enhancement Test Report written by W. Steffancin and published by . This book was released on 1986 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes enhancements made to the CSC meteor burst model in 1985 and presents and analyzes the effects of the enhancements on model results. The enhancements made include the effects of: overdense bursts, transverse resonance, burst formation, atmospheric refraction, ionospheric absorption, shower meteors and the earth's gravitational effect on meteor radiants. Keywords included: Meteor Burst communications, Absorption (PCA), Airborne terminals, Overdense bursts, Shower meteors, and Physical modeling.

Download or read book Signal written by and published by . This book was released on 1990 with total page 1010 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Experimental Determination of Meteor Daily Arrival Rate Variation written by John M. Quinn and published by . This book was released on 1993 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 1958 Proceedings of the National Conference on Aeronautical Electronics written by and published by . This book was released on 1958 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On the Wavelength Dependence of the Information Capacity of Meteor burst Propagation written by Stanford University. Stanford Electronics Laboratories and published by . This book was released on 1957 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Air Force Communications Command 1938 1986 written by and published by . This book was released on 1986 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the National Conference on Aeronautical Electronics written by and published by . This book was released on 1958 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Meteor Burst Communications Improvement Study written by and published by . This book was released on 1993 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two identical Meteor Burst Radio Terminals were developed, fabricated and delivered to the Air Force. Each is controlled by a PC computer in a memo driven manner. Mode of operation is full duplex. The RF frequency range is 40 to 60 MHz with tunning increments of 25 KHz. Data rates are 4, 8, 16, 32, 64, 128, 256, and 512 kbps. Modulation is coherent Binary Phase Shift Keying (BPSK) and incoherent Differential Phase Shift Keying (DPSK). Protocol includes Automatic Repeat Request (ARQ) with source and destination addressing, message number, start of message and end of message. Messages are packetized and Read Solomon (R-S) coding is an option. The ARQ is under control of a Cyclic Redundancy Check Code (CRCC) which detects binary errors within each packet. The terminal is intended to increase meteor trail availability and data throughput by several orders of magnitude - by operating with new antennas that provide much higher gains without sacrificing meteor trail acquisition performance.

Download or read book Meteor Burst Communications written by Payman Behboudikha and published by . This book was released on 1996 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Meteor Burst Communications Systems written by M. Irving and published by . This book was released on 1989 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Earth's atmosphere is constantly bombarded by vast numbers of meteors, travelling at thousands of kilometres per hour. Upon entering the atmosphere, the friction of the air produces enough heat to completely vaporise these meteors. In the denser atmosphere at around 115 km altitude, the vaporised atoms collide with air molecules, producing a trail of free electrons. Complete vaporisation generally occurs by 80 km altitude. This document presents a summary of Meteor Burst Communication Systems, based on the results of twenty-nine papers published between 1953 and 1988. It also includes information on the various modelling techniques employed. Australia. (JES).