Long Distance Propagation Of Hf Radio Waves
DOWNLOAD
Download Long Distance Propagation Of Hf Radio Waves PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Long Distance Propagation Of Hf Radio Waves book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Long Distance Propagation Of Hf Radio Waves
DOWNLOAD
Author : Aleksandr Viktorovich Gurevich
language : en
Publisher: Springer
Release Date : 1985
Long Distance Propagation Of Hf Radio Waves written by Aleksandr Viktorovich Gurevich and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Science categories.
Long Distance Propagation Of Hf Radio Waves
DOWNLOAD
Author : Alexander V. Gurevich
language : en
Publisher: Springer
Release Date : 1985
Long Distance Propagation Of Hf Radio Waves written by Alexander V. Gurevich and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Science categories.
The study of very long-distance and around-the-world propagation of HF radio waves becomes more urgent in connection with the problems of long distance ground-based radio communications, communications with space crafts and satellites, satellite-to-satellite communications, around-the-world radar scanning, around-the-world sounding of the ionosphere, etc. At pre sent, these investigations have acquired particular interest because transmit ters which make it possible to intentionally modify the ionospheric properties by powerful radio waves have become available. In the case of radio wave propagation over comparatively small distances (about 3000 - 5000 km, one - two hops), in a first approximation, the iono sphere can be considered homogeneous in the horizontal direction. The radio wave propagation theory in a horizontally-homogeneous, i. e. , spherically symmetric ionosphere was developed with sufficient completeness as early as in the 1920-1940's by Appleton, Ratcliffe, Beynon, Booker, Martyn, and others. This theory is presented in detail in the well-known monographs by Ginzburg (1967), Bremmer (1946), and Budden (1961). Based on this theory, detailed methods for the calculation of radio paths, determination of field amplitude, and interpretation of vertical and oblique ionograms have been developed. All these methods are well-known and widely used in practice, see monographs by Al'pert (1974), Shchukin (1940), and Davies (1969). An altogether different situation takes place in the case of very long-dis tance multihop and around-the-world propagation.
Long Distance Propagation Of Hf Radio Waves
DOWNLOAD
Author : Alexander V. Gurevich
language : en
Publisher: Springer
Release Date : 1985-08
Long Distance Propagation Of Hf Radio Waves written by Alexander V. Gurevich and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985-08 with Science categories.
The study of very long-distance and around-the-world propagation of HF radio waves becomes more urgent in connection with the problems of long distance ground-based radio communications, communications with space crafts and satellites, satellite-to-satellite communications, around-the-world radar scanning, around-the-world sounding of the ionosphere, etc. At pre sent, these investigations have acquired particular interest because transmit ters which make it possible to intentionally modify the ionospheric properties by powerful radio waves have become available. In the case of radio wave propagation over comparatively small distances (about 3000 - 5000 km, one - two hops), in a first approximation, the iono sphere can be considered homogeneous in the horizontal direction. The radio wave propagation theory in a horizontally-homogeneous, i. e. , spherically symmetric ionosphere was developed with sufficient completeness as early as in the 1920-1940's by Appleton, Ratcliffe, Beynon, Booker, Martyn, and others. This theory is presented in detail in the well-known monographs by Ginzburg (1967), Bremmer (1946), and Budden (1961). Based on this theory, detailed methods for the calculation of radio paths, determination of field amplitude, and interpretation of vertical and oblique ionograms have been developed. All these methods are well-known and widely used in practice, see monographs by Al'pert (1974), Shchukin (1940), and Davies (1969). An altogether different situation takes place in the case of very long-dis tance multihop and around-the-world propagation.
Long Distance Propagation Of Hf Radio Waves
DOWNLOAD
Author : Alexander V. Gurevich
language : en
Publisher:
Release Date : 2014-08-15
Long Distance Propagation Of Hf Radio Waves written by Alexander V. Gurevich and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-08-15 with categories.
Journal Of Research
DOWNLOAD
Author : United States. National Bureau of Standards
language : en
Publisher:
Release Date : 1961
Journal Of Research written by United States. National Bureau of Standards and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Ionospheric radio wave propagation categories.
Radio Wave Propagation Fundamentals Second Edition
DOWNLOAD
Author : Artem Saakian
language : en
Publisher: Artech House
Release Date : 2020-12-31
Radio Wave Propagation Fundamentals Second Edition written by Artem Saakian and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-12-31 with Technology & Engineering categories.
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.
Journal Of Research Of The National Bureau Of Standards
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1965
Journal Of Research Of The National Bureau Of Standards written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Engineering categories.
Detecting And Classifying Low Probability Of Intercept Radar
DOWNLOAD
Author : Phillip E. Pace
language : en
Publisher: Artech House
Release Date : 2009
Detecting And Classifying Low Probability Of Intercept Radar written by Phillip E. Pace and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Technology & Engineering categories.
"This comprehensive book presents LPI radar design essentials, including ambiguity analysis of LPI waveforms, FMCW radar, and phase-shift and frequency-shift keying techniques. Moreover, you find details on new OTHR modulation schemes, noise radar, and spatial multiple-input multiple-output (MIMO) systems. The book explores autonomous non-linear classification signal processing algorithms for identifying LPI modulations. It also demonstrates four intercept receiver signal processing techniques for LPI radar detection that helps you determine which time-frequency, bi-frequency technique best suits any LPI modulation of interest."--Publisher.
Spectrum Requirement Planning In Wireless Communications
DOWNLOAD
Author : Hideaki Takagi
language : en
Publisher: John Wiley & Sons
Release Date : 2008-04-30
Spectrum Requirement Planning In Wireless Communications written by Hideaki Takagi and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-04-30 with Technology & Engineering categories.
Presents the model and methodology, applied by ITU-R WRC’07, to calculate the spectrum requirement Spectrum Requirement Planning in Wireless Communications: Model and Methodology for IMT-Advanced is a self-contained “handbook” of the models and methodologies used for the spectrum requirement calculation for IMT-Advanced systems, as well as for the predecessor IMT-2000 systems. The reader will learn how the spectrum requirement is calculated for real systems that prevail worldwide. The book also provides the basis on which to develop advanced methodologies for yet future systems, as the spectrum regulation will continue in the future. Spectrum Requirement Planning in Wireless Communications: Model and Methodology for IMT-Advanced Provides the reader with information on how the spectrum requirement is calculated for real systems that prevail worldwide Contains useful tables and examples such as flowchart of the methodology Introduces definitions of service category and radio environment, the process of distributing traffic to radio environments, and the method to calculate the required spectrum Applies queueing and loss models for the calculation of required system capacity Covers utilization of radio frequencies, market data, spectrum requirement calculation methods for IMT-2000 and for IMT-Advanced systems Instructs how to use the calculation tool package Comes with an accompanying website with the downloadable tool applied by ITU-R WRC’07 for making decisions on spectrum regulation for mobile systems This book serves as an invaluable guide to engineers in mobile phone companies, system design engineers, operator system engineers and other specialists dealing with mobile system planning and development. It is also of great interest to researchers and graduate students in the fields of applied probability theory, operations research, telecommunications, and mobile networks engineering.
Active Experiments In Space Past Present And Future
DOWNLOAD
Author : Gian Luca Delzanno
language : en
Publisher: Frontiers Media SA
Release Date : 2020-07-10
Active Experiments In Space Past Present And Future written by Gian Luca Delzanno and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-07-10 with categories.