Download or read book Microwave Fading with Airborne Terminals written by Harold T. Dougherty and published by . This book was released on 1967 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: After a brief description of the significance of the radio refractive index and its variation in the atmosphere, a brief catalogue of fading mechanisms is presented. Attention is directed to the variety of fading mechanisms that are pertinent for the propagation of radio waves when one or both terminals are airborne. The general characteristics of those fading mechanisms are presented and the techniques available for the reduction of fading are described. The phenomenon of multipath fading is described. The distributions for multipath propagation are discussed and presented. The device of diversity reception (frequency or space) is outlined for reducing the fading due to multipath. The phenomenon of diffraction fading is described both for diffraction by the earth's surface and by the atmospheric layers. The resulting radio holes are then specified in terms of the geometry and the pertinent refractivity gradients. The avoidance of radio holes for one or more airborne terminals is discussed.
Download or read book Microwave Fading with Airborne Terminals written by Harold T. Dougherty and published by . This book was released on 1967 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ESSA Technical Report IER ITSA written by and published by . This book was released on 1967 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ESSA Technical Reort IER written by United States. Environmental Science Services Administration and published by . This book was released on 1967 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Digital Microwave Communications in a Strong Meteorological Ducting Environment written by R. W. Hubbard and published by . This book was released on 1979 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog United States Public Documents written by United States. Superintendent of Documents and published by . This book was released on 1968 with total page 1716 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Download or read book The United States Department of Commerce Publications Catalog and Index Supplement written by United States. Dept. of Commerce and published by . This book was released on 1967 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book United States Department of Commerce Publications written by United States. Department of Commerce. Office of Publications and published by . This book was released on 1968 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1970 with total page 1348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1966 with total page 1320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Publications of the ESSA Research Laboratories written by and published by . This book was released on 1966 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Survey of Microwave Fading Mechanisms Remedies and Applications written by Harold T. Dougherty and published by . This book was released on 1968 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: After a brief description of the significance of the radio refractive index and its variation in the lower troposphere, a catalog of fading mechanisms is presented. Attention is directed to the supporting refractive index structure, the characteristics of the fading signal, and the available remedies. The phenomena of multipath fading are described, and the theoretical amplitude distributions are presented. Diversity reception (frequency or space) is outlined for reducing the fading due to multipath. Specific expressions are given for determining the frequency or space separations.Successful remedies for microwave fading that are keyed to specific fading mechanisms also constitute a means of measuring the characteristics of the prevailing meteorological conditions. Specific expressions are given to accomplish this for the multipath and diffraction fading mechanisms.
Download or read book Some Mobile VHF Measurements in an Urban Environment written by and published by . This book was released on 1981 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multipath in Air Traffic Control Frequency Bands written by and published by . This book was released on 1974 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book WPL written by and published by . This book was released on with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Information Products of the Office of Telecommunications written by United States. Department of Commerce. Office of Telecommunications and published by . This book was released on 1975 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Proposed Program for the Study of Atmospheric Attenuation of Satellite Signals written by J. B. Snider and published by . This book was released on 1968 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: The theory of absorption and emission of radio frequency energy by atmospheric constituents is reviewed. Theoretical limitations and the problem of predicting atmospheric effects upon satellite communications systems are discussed. A program is outlined to experimentally investigate atmospheric absorption and emission with emphasis placed upon rainfall phenomena using simultaneous measurements of satellite - earth transmission loss and meteorological parameters, including radar measurements of precipitation.
