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Author : James Smith Finnie
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (62 download)
Download or read book Prediction of Ground-wave Radio Propagation Over Irregular Inhomogeneous Terrain written by James Smith Finnie and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.:/5 (115 download)
Download or read book Measurements and Predictions of HF Ground Wave Radio Propagation Over Irregular, Inhomogeneous Terrain written by and published by . This book was released on 1984 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.:/5 (115 download)
Download or read book Measurements and Predictions of HF Ground Wave Radio Propagation Over Irregular, Inhomogeneous Terrain written by and published by . This book was released on 1984 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. H. Ott
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.0/5 ( download)
Download or read book A New Method for Predicting HF Ground Wave Attenuation Over Inhomogeneous, Irregular Terrain written by R. H. Ott and published by . This book was released on 1971 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. H. Ott
Publisher :
ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.3/5 (91 download)
Download or read book Ground Wave Propagation Over Irregular, Inhomogeneous Terrain written by R. H. Ott and published by . This book was released on 1979 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gordon J. Fulks
Publisher :
ISBN 13 :
Total Pages : 66 pages
Book Rating : 4.:/5 (227 download)
Download or read book HF Ground Wave Propagation Over Smooth and Irregular Terrain written by Gordon J. Fulks and published by . This book was released on 1981 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report addresses several aspects of ground wave propagation. Included are discussions of the general characteristics of ground waves as well as specific formulas for predicting ground wave field strengths at arbitrary locations from a standard transmitter. These formulas, from the work of Bremmer, apply to either vertical or horizontal polarization, to a smooth spherical earth, and to a wide variety of soil types. A computer program to evaluate the formulas is presented and sample results are given. Although this report concentrates on HF frequencies, many of the results are applicable to a much wider range of frequencies. Atmospheric refraction, which may enhance ground wave propagation, is discussed. Formulas for predicting refraction effects based on atmospheric temperature and humidity as well as temperature and humidity gradients are presented. Propagation over inhomogeneous and irregular terrain is considered. Only limited aspects of such propagation are discussed with an emphasis on irregular terrain. Obstacle gain is covered in some detail. Because of the lack of experimental data for ground wave propagation over irregular terrain at HF frequencies, an experiment is recommended. (Author).
Author : R. H. Ott
Publisher :
ISBN 13 :
Total Pages : 137 pages
Book Rating : 4.:/5 (897 download)
Download or read book Ground Wave Propagation Over Irregular Inhomogeneous Terrain written by R. H. Ott and published by . This book was released on 1979 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William A. Kissick
Publisher :
ISBN 13 :
Total Pages : 188 pages
Book Rating : 4.:/5 (31 download)
Download or read book Measurements of LF and MF Radio Propagation Over Irregular, Inhomogeneous Terrain written by William A. Kissick and published by . This book was released on 1979 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. H. Ott
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.3/5 (129 download)
Download or read book A New Method for Predicting HF Ground Wave Attenuation Over Inhomogeneous, Irregular Terrain written by R. H. Ott and published by . This book was released on 1971 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kenneth Alva Norton
Publisher :
ISBN 13 :
Total Pages : 27 pages
Book Rating : 4.:/5 (88 download)
Download or read book Ground Wave Propagation Over Irregular Terrain at Frequencies Above 50 Mc written by Kenneth Alva Norton and published by . This book was released on 1949 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. H. Ott
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (123 download)
Download or read book Ground Wave Propagation Over Irregular, Inhomogeneous Terrain :. written by R. H. Ott and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gokhan Apaydin
Publisher : John Wiley & Sons
ISBN 13 : 1119432154
Total Pages : 161 pages
Book Rating : 4.1/5 (194 download)
Download or read book Radio Wave Propagation and Parabolic Equation Modeling written by Gokhan Apaydin and published by John Wiley & Sons. This book was released on 2017-08-31 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: An important contribution to the literature that introduces powerful new methods for modeling and simulating radio wave propagation A thorough understanding of electromagnetic wave propagation is fundamental to the development of sophisticated communication and detection technologies. The powerful numerical methods described in this book represent a major step forward in our ability to accurately model electromagnetic wave propagation in order to establish and maintain reliable communication links, to detect targets in radar systems, and to maintain robust mobile phone and broadcasting networks. The first new book on guided wave propagation modeling and simulation to appear in nearly two decades, Radio Wave Propagation and Parabolic Equation Modeling addresses the fundamentals of electromagnetic wave propagation generally, with a specific focus on radio wave propagation through various media. The authors explore an array of new applications, and detail various virtual electromagnetic tools for solving several frequent electromagnetic propagation problems. All of the methods described are presented within the context of real-world scenarios typifying the differing effects of various environments on radio-wave propagation. This valuable text: Addresses groundwave and surface wave propagation Explains radar applications in terms of parabolic equation modeling and simulation approaches Introduces several simple and sophisticated MATLAB scripts Teaches applications that work with a wide range of electromagnetic, acoustic and optical wave propagation modeling Presents the material in a quick-reference format ideal for busy researchers and engineers Radio Wave Propagation and Parabolic Equation Modeling is a critical resource forelectrical, electronics, communication, and computer engineers working on industrial and military applications that rely on the directed propagation of radio waves. It is also a useful reference for advanced engineering students and academic researchers.
Author : J. Ralph Johler
Publisher :
ISBN 13 :
Total Pages : 188 pages
Book Rating : 4.0/5 ( download)
Download or read book Loran Radio Navigation Over Irregular, Inhomogeneous Ground with Effective Ground Impedance Maps written by J. Ralph Johler and published by . This book was released on 1971 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. National Telecommunications and Information Administration
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.3/5 ( download)
Download or read book Publications Abstracts written by United States. National Telecommunications and Information Administration and published by . This book was released on 1984 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Anita G. Longley
Publisher :
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.0/5 ( download)
Download or read book Prediction of Tropospheric Radio Transmission Loss Over Irregular Terrain written by Anita G. Longley and published by . This book was released on 1968 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rayner K. Rosich
Publisher :
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.3/5 (129 download)
Download or read book Attenuation of High-frequency Ground Waves Over an Inhomogeneous Earth written by Rayner K. Rosich and published by . This book was released on 1970 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of this study was to obtain theoretical estimates of the effect of inhomogeneities in the earth's surface upon ground-wave propagation along a particular set of land-sea paths.The results were obtained by numerically solving the integral equation [equation],where f* is the attenuation function for the inhomogeneous case, f is the Sommerfeld function, and g is obtained essentially from the spherical Green's function by a steepest-descent type integration. Sharp phase and amplitude changes in the attenuation function occur when crossing an "island" or inhomogeneity in the paths. The greater the difference in conductivity and dielectric constant between the island and the rest of the path, the greater are these changes. Also noted is the "recovery'' or "focusing" effect found in the amplitude and phase. The effect of moving the transmitting antenna across a coastline was also studied and the results were quite similar to the above. Computations were performed for three paths at frequencies of 10, 15, 20, and 25 MHz. The results are displayed in tabular and graphical form. This report is a revised and updated version of an earlier study (Rosich, 1968) which is now out of print.
Author :
Publisher :
ISBN 13 :
Total Pages : 1572 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
