Radiowave Propagation Over Ground

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Radio Wave Propagation Fundamentals, Second Edition

Author : Artem Saakian
Publisher : Artech House
ISBN 13 : 1630818453
Total Pages : 422 pages
Book Rating : 4.6/5 (38 download)

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Book Synopsis Radio Wave Propagation Fundamentals, Second Edition by : Artem Saakian

Download or read book Radio Wave Propagation Fundamentals, Second Edition written by Artem Saakian and published by Artech House. This book was released on 2020-12-31 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: This completely updated second edition of an Artech House classic provides a thorough introduction to the basic principles of electromagnetic wave propagation of radio frequencies in real-world conditions, fully updated by including new achievements in theory and technology. It serves as an invaluable daily reference for practitioners in the field and as a complete, organized text on the subject. This comprehensive resource covers a wide range of essential topics, from the classification of radio waves, electromagnetic wave theory, and antennas for RF radio links, to the impact of the earth surface on the propagation of ground waves, atmospheric affects in radio wave propagation, and radio wave reception. The book explores the propagation of the ground radio waves, namely the waves that propagate in vicinity of the earth's surface (e.g., guided by that interface), without involvement of any atmospheric effects. Specifics of the high-frequency (HF) radio propagation due to reflections from ionospheric layers is studied, based on commonly used models of the ionospheric vertical profiles. Scattering of the radio waves of UHF and higher frequency bands from the random variations of the tropospheric refraction index (from tiny air turbulences) are also considered by using the principles of statistical radio-physics. Analysis of propagation conditions on real propagation paths, including analysis of the power budget of the VHF/UHF link to assure its stability (percentage of availability within observation time frame), terrestrial, broadcast, mobile, and satellite RF links are presented. The engineering design of the cellular networks, including LTE 4G, 5G and upcoming higher generations is explored. HF propagation predictions for extremely long-range links design for commercial and military applications are explained. Packed with examples and problems, this book provides a theoretical background for astrophysical, aeronomy and geophysical instrumentation design.

Radiowave Propagation Over Ground Software

Author : J. Maclean
Publisher : Springer Science & Business Media
ISBN 13 : 148990154X
Total Pages : 139 pages
Book Rating : 4.4/5 (899 download)

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Book Synopsis Radiowave Propagation Over Ground Software by : J. Maclean

Download or read book Radiowave Propagation Over Ground Software written by J. Maclean and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the package is to answer the question 'What is the radio field strength at a certain point?' when power is radiated from a transmit ting source. Because of the complexity of the question in general, it can only be answered at present in certain idealized situations. Nevertheless it is valuable to have quantitative data available for these situations. The package is divided into two parts. In the first of these, propagation in free space and over a flat earth are dealt with. In the second, propagation over a spherical earth is considered. In the free-space situation the power density of the signal in a given direction will fall as the inverse square of the distance from the source. For propagation from a transmitting source at an arbitrary height above a perfecdy conducting flat earth, the field strength at large distances can be 3 dB higher than in free space. With a finite conduc tivity earth, the field strength will be lower than this because of the power dissipation in the earth.

Radiowave Propagation Over Ground

Author : J. Maclean
Publisher : Springer
ISBN 13 : 0412427303
Total Pages : 300 pages
Book Rating : 4.4/5 (124 download)

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Book Synopsis Radiowave Propagation Over Ground by : J. Maclean

Download or read book Radiowave Propagation Over Ground written by J. Maclean and published by Springer. This book was released on 1993-01-31 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book devoted to radiowave propagation over land and sea. Researchers and engineers involved in propagation studies and applications in communications, broadcasting, radar and remote sensing will find this volume invaluable.

Radiowave Propagation

Author : Curt Levis
Publisher : John Wiley & Sons
ISBN 13 : 0470542950
Total Pages : 316 pages
Book Rating : 4.4/5 (75 download)

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Book Synopsis Radiowave Propagation by : Curt Levis

Download or read book Radiowave Propagation written by Curt Levis and published by John Wiley & Sons. This book was released on 2010-06-01 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: An accessible student-oriented approach to radiowave propagation Propagation-the process whereby a signal is conveyed between transmitter and receiver-has a profound influence on communication systems design. Radiowave Propagation provides an overview of the physical mechanisms that govern electromagnetic wave propagation in the Earth's troposphere and ionosphere. Developed in conjunction with a graduate-level wave propagation course at The Ohio State University, this text offers a balance of physical and empirical models to provide basic physical insight as well as practical methods for system design. Beginning with discussions of propagation media properties, plane waves, and antenna and system concepts, successive chapters consider the most important wave propagation mechanisms for frequencies ranging from LF up to the millimeter wave range, including: Direct line-of-sight propagation through the atmosphere Rain attenuation The basic theory of reflection and refraction at material interfaces and in the Earth's atmosphere Reflection, refraction, and diffraction analysis in microwave link design for a specified terrain profile Empirical path loss models for point-to-point ground links Statistical fading models Standard techniques for prediction of ground wave propagation Ionospheric propagation, with emphasis on the skywave mechanism at MF and HF and on ionospheric perturbations for Earth-space links at VHF and higher frequencies A survey of other propagation mechanisms, including tropospheric scatter, meteor scatter, and propagation effects on GPS systems Radiowave Propagation incorporates fundamental materials to help senior undergraduate and graduate engineering students review and strengthen electromagnetic physics skills as well as the most current empirical methods recommended by the International Telecommunication Union. This book can also serve as a valuable teaching and reference text for engineers working with wireless communication, radar, or remote sensing systems.

Radio Wave Propagation

Author : Peter Ash Matthews
Publisher :
ISBN 13 :
Total Pages : 172 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Radio Wave Propagation by : Peter Ash Matthews

Download or read book Radio Wave Propagation written by Peter Ash Matthews and published by . This book was released on 1965 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Amplitude and Phase Curves for Ground-wave Propagation in the Band 200 Cycles Per Second to 500 Kilocycles

Author : James R. Wait
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Amplitude and Phase Curves for Ground-wave Propagation in the Band 200 Cycles Per Second to 500 Kilocycles by : James R. Wait

Download or read book Amplitude and Phase Curves for Ground-wave Propagation in the Band 200 Cycles Per Second to 500 Kilocycles written by James R. Wait and published by . This book was released on 1956 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Attenuation of High-frequency Ground Waves Over an Inhomogeneous Earth

Author : Rayner K. Rosich
Publisher :
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.3/5 (129 download)

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Book Synopsis Attenuation of High-frequency Ground Waves Over an Inhomogeneous Earth by : Rayner K. Rosich

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.

Ground Wave Propagation Over Irregular Terrain at Frequencies Above 50 Mc

Author : Kenneth Alva Norton
Publisher :
ISBN 13 :
Total Pages : 27 pages
Book Rating : 4.:/5 (88 download)

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Book Synopsis Ground Wave Propagation Over Irregular Terrain at Frequencies Above 50 Mc by : Kenneth Alva Norton

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:

Transmission Loss in Radio Propagation

Author : Kenneth Alva Norton
Publisher :
ISBN 13 :
Total Pages : 160 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Transmission Loss in Radio Propagation by : Kenneth Alva Norton

Download or read book Transmission Loss in Radio Propagation written by Kenneth Alva Norton and published by . This book was released on 1957 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Radiowave Propagation

Author : Martin P. M. Hall
Publisher :
ISBN 13 :
Total Pages : 304 pages
Book Rating : 4.:/5 (39 download)

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Book Synopsis Radiowave Propagation by : Martin P. M. Hall

Download or read book Radiowave Propagation written by Martin P. M. Hall and published by . This book was released on 1989 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based on the IEE Vacation School on Radiowave Propagation held at the University of Surrey. Within an intensive week of study, 15 lecturers presented a range of topics covering aspects of propagation from VLF to millimetre wavelengths and from surface waves to earth/space propagation.

Radio Wave Propagation

Author : Armel Picquenard
Publisher : John Wiley & Sons
ISBN 13 :
Total Pages : 362 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Radio Wave Propagation by : Armel Picquenard

Download or read book Radio Wave Propagation written by Armel Picquenard and published by John Wiley & Sons. This book was released on 1974 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ground Wave Propagation Over Irregular, Inhomogeneous Terrain

Author : R. H. Ott
Publisher :
ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Ground Wave Propagation Over Irregular, Inhomogeneous Terrain by : R. H. Ott

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:

Ground Wave Propagation in an Ionized Atmosphere with Arbitrary Variation of the Conductivity with Altitude

Author : J. Ralph Johler
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Ground Wave Propagation in an Ionized Atmosphere with Arbitrary Variation of the Conductivity with Altitude by : J. Ralph Johler

Download or read book Ground Wave Propagation in an Ionized Atmosphere with Arbitrary Variation of the Conductivity with Altitude written by J. Ralph Johler and published by . This book was released on 1970 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The atmosphere can apparently be ionized to such a degree that the ground wave is disturbed, as a result of, for example, a nuclear event, and ionizing radiation of sufficient intensity to overcome the ion-ion recombination processes may cause the ions to accumulate near the surface of the ground. Gamma radiation from the fallout of a nuclear weapon may produce such ionization for a considerable time after the nuclear event. The problem is similar to that of terrestrial radio wave propagation via the ionosphere, except that in the former case the ionization has a maximum near the surface of the ground and decreases exponentially with altitude. In other words, we have an upside down ionosphere to consider. A new theoretical approach to such ground wave problems based on methods of numerical analysis has been developed for computer application. The computer computation concept is discussed and sample computations based on the fallout model profile are presented. A particular fallout model based on data given in the U.S. Atomic Energy Commission’s handbook on “The Effects of Nuclear Weapons” is considered in some detail, and the effect of an ionization profile (ion number density as a function of altitude) on the propagation of the ground wave is ascertained. A physically possible but not likely extra attenuation of 12 dB at 100 km distance is noted.

Propagation of Radio Waves at Frequencies below 300 Kc/s

Author : W. T. Blackband
Publisher : Elsevier
ISBN 13 : 1483280004
Total Pages : 493 pages
Book Rating : 4.4/5 (832 download)

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Book Synopsis Propagation of Radio Waves at Frequencies below 300 Kc/s by : W. T. Blackband

Download or read book Propagation of Radio Waves at Frequencies below 300 Kc/s written by W. T. Blackband and published by Elsevier. This book was released on 2014-06-28 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: Propagation of Radio Waves at Frequencies Below 300 KC/S covers the proceedings of the Seventh Meeting at the AGARD Ionospheric Research Committee, held in Munich, Germany on September 17-21, 1962. This book is organized into eight parts encompassing 32 chapters. The first parts deal with research studies concerning the electron density distribution and some properties of the lower ionosphere, as well as the effect of D-layer irregularities on radio wave propagation. The next parts explore the low frequency propagation in the lower ionosphere, the measurement of oblique incidence, and the statistical frequency spectrum of radio noise below 300 kc/s. The remaining chapters discuss the diurnal changes, the statistical prediction, the mode theory, and the propagation of very and extremely low frequency radio waves in the ionosphere. These chapters also examine the Earth resonance. This book will prove useful to astronomers, astrophysicists, and space scientists.

Radio Wave Propagation Fundamentals

Author : Artem Saakian
Publisher : Artech House Publishers
ISBN 13 : 9781608071388
Total Pages : 376 pages
Book Rating : 4.0/5 (713 download)

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Book Synopsis Radio Wave Propagation Fundamentals by : Artem Saakian

Download or read book Radio Wave Propagation Fundamentals written by Artem Saakian and published by Artech House Publishers. This book was released on 2011-06-01 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written for professional engineers and students who specialize in antenna, communication and radar systems, this authoritative book provides a thorough introduction to the basic principles of electromagnetic wave propagation of radio frequencies in real-world conditions. It serves as an invaluable daily reference for practitioners in the field and also as a complete, organized text on the subject.This comprehensive resource covers a wide range of essential topics, from the classification of radio waves, electromagnetic wave theory, and antennas for RF radio links... to the impact of the earth surface on the propagation of ground waves, atmospheric affects in radio wave propagation, and radio wave reception. The book is packed with over 1,105 time-saving equations and key discussions are supported with more than 190 illustrations. Moreover, each chapter includes problem sets to test the readerOCOs mastery of the material.

Radiowave Propagation in Satellite Communications

Author : Louis J. Ippolito
Publisher : Springer Science & Business Media
ISBN 13 : 9401170274
Total Pages : 249 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Radiowave Propagation in Satellite Communications by : Louis J. Ippolito

Download or read book Radiowave Propagation in Satellite Communications written by Louis J. Ippolito and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiowave Propagation in Communications was written with two basic objec tives: (l) to present an up-to-date review of the major radiowave propagation phenomena which hinder reliable space communications, and (2) to describe how these propagation phenomena affect the design and performance of satellite communications systems. Earth-orbiting satellites are employed extensively for the relay of information in a vast array of telecommunications, meteorological, government, and sci entific applications. Satellite systems rely on the transmission of radiowaves to and from the satellite and are dependent on the propagation characteristics of the transmission path, primarily the earth's atmosphere. Radiowave propagation thus plays a very important part in the design and ultimate performance of space communications systems. This book presents, for the first time, the meshing in a single publication of the fundamentals of radiowave propagation factors with a discussion of the practical consequences of these factors on satellite communications systems. Two major subfie1ds are involved in this book. Radiowave propagation, which is basically applied electromagnetic theory, provides the theory and an alytical tools for the first several chapters. Later chapters then apply propagation effects to the field of electrical engineering involved with satellite communi cations. The material progresses from the essential aspects of radiowave prop agation to the application of practical methods and techniques in the design and performance of satellite communications systems.

Analysis of Air-ground Radio Wave Propagation Measurements at 800 MHz [by] G.D. Gierhart ... [et Al.].

Author : Institute for Telecommunication Sciences
Publisher :
ISBN 13 :
Total Pages : 112 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Analysis of Air-ground Radio Wave Propagation Measurements at 800 MHz [by] G.D. Gierhart ... [et Al.]. by : Institute for Telecommunication Sciences

Download or read book Analysis of Air-ground Radio Wave Propagation Measurements at 800 MHz [by] G.D. Gierhart ... [et Al.]. written by Institute for Telecommunication Sciences and published by . This book was released on 1971 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: