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Author : R. D. Hunsucker
Publisher : Unknown
Page : 128 pages
File Size : 49,7 Mb
Release : 2003
Category : Solar magnetic fields
ISBN : OCLC:54688362
Author : R. D. Hunsucker,J. K. Hargreaves
Publisher : Cambridge University Press
Page : 639 pages
File Size : 47,7 Mb
Release : 2007-09-10
Category : Science
ISBN : 9781139435000
A modern treatment of the physics and phenomena of the ionosphere, beginning with the basics of radio propagation and the use of radio techniques in ionospheric studies. Ample cross-referencing, chapter summaries and reference lists make this book an invaluable aid for graduate students, ionospheric physicists and radio engineers.
Author : Kenneth Davies
Publisher : Unknown
Page : 492 pages
File Size : 53,8 Mb
Release : 1965
Category : Ionospheric radio wave propagation
ISBN : UOM:39015001324881
Author : Michael C. Kelley
Publisher : Academic Press
Page : 576 pages
File Size : 45,7 Mb
Release : 2009-06-12
Category : Science
ISBN : 0080916570
Although interesting in its own right, due to the ever-increasing use of satellites for communication and navigation, weather in the ionosphere is of great concern. Every such system uses trans-ionospheric propagation of radio waves, waves which must traverse the commonly turbulent ionosphere. Understanding this turbulence and predicting it are one of the major goals of the National Space Weather program. Acquiring such a prediction capability will rest on understanding the very topics of this book, the plasma physics and electrodynamics of the system. Fully updated to reflect advances in the field in the 20 years since the first edition published Explores the buffeting of the ionosphere from above by the sun and from below by the lower atmosphere Unique text appropriate both as a reference and for coursework
Author : Curt Levis,Joel T. Johnson,Fernando L. Teixeira
Publisher : John Wiley & Sons
Page : 316 pages
File Size : 46,9 Mb
Release : 2010-06-01
Category : Technology & Engineering
ISBN : 9780470542958
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.
Author : Ivan G. Petrovski,Toshiaki Tsujii
Publisher : Cambridge University Press
Page : 339 pages
File Size : 41,6 Mb
Release : 2012-03-29
Category : Technology & Engineering
ISBN : 9780521760546
Your hands-on guide to GNSS theory and applications, with practical case studies and bundled real-time software receiver and signal simulator.
Author : Tuomo Nygrén
Publisher : Unknown
Page : 41 pages
File Size : 42,5 Mb
Release : 1981
Category : Electronic
ISBN : 9514210263
Author : Vladislav Demyanov,Yury Yasyukevich,Maria A. Sergeeva,Artem Vesnin
Publisher : Springer Nature
Page : 376 pages
File Size : 44,5 Mb
Release : 2022-11-26
Category : Science
ISBN : 9783031158742
This book addresses problems of GNSS performance support under geomagnetic storms and solar radio bursts. It analyses both physical and radio-engineering sources of GNSS performance deterioration caused by geomagnetic storms, solar radio bursts and peculiarities of the polar and equatorial ionosphere. The book takes into consideration both standalone GNSS and differential GNSS. Based on experimental data analysis, it presents a systematic approach to maintaining reliable GNSS performance despite the Space Weather impacts. Given its scope, the book offers a valuable resource for GNSS users and equipment developers, as well as researchers and students whose work involves GNSS remote sensing, surveying, navigation, and related disciplines.
Author : Anonim
Publisher : Unknown
Page : 702 pages
File Size : 53,7 Mb
Release : 1995
Category : Aeronautics
ISBN : UIUC:30112048646605
Author : K. G. Budden
Publisher : Cambridge University Press
Page : 694 pages
File Size : 42,9 Mb
Release : 1988-08-04
Category : Science
ISBN : 0521369525
This book is concerned with the ionosphere and the magnetosphere, and the theory of their effect on radio waves. It includes accounts of some mathematical topics now widely used in this study, particularly W. K. B. approximations, Airy integral functions and integration by steepest descents. The subject is divided into ray theory and full wave theory. Ray theory is useful for high frequencies when the ionosphere is treated as a horizonally stratified medium. The discussion of the magnetosphere, whose structure is more complicated, includes an account of whistlers and ion cyclotron whistlers. The book has been planned both for final year undergraduates and as a reference book for research. It is suitable as a course book on radio propagation for students of physics or electrical engineering or mathematics. Some of the topics are presented from an elementary viewpoint so as to help undergraduates new to the subject. The later parts are more advanced. Because the subject is so large and has seen many important recent advances, some topics have had to be treated briefly, but there is a full bibliography with about 600 references.
Author : Bruno Zolesi,Ljiljana R. Cander
Publisher : Springer Science & Business Media
Page : 240 pages
File Size : 51,5 Mb
Release : 2013-09-25
Category : Science
ISBN : 9783642384301
This book describes how to predict and forecast the state of planet Earth’s ionosphere under quiet and disturbed conditions in terms of dynamical processes in the weakly ionized plasma media of the upper atmosphere and their relation to available modern measurements and modelling techniques. It explains the close relationship between the state of the media and the radio wave propagation conditions via this media. The prediction and forecasting algorithms, methods and models are oriented towards providing a practical approach to ionospherically dependent systems design and engineering. Proper understanding of the ionosphere is of fundamental practical importance because it is an essential part of telecommunication and navigation systems that use the ionosphere to function or would function much better in its nonappearance on the Earth and on any planet with an atmosphere.
Author : KORENKOV
Publisher : Birkhäuser
Page : 373 pages
File Size : 50,5 Mb
Release : 2013-12-11
Category : Science
ISBN : 9783034865326
Author : Jules Aarons
Publisher : Unknown
Page : 72 pages
File Size : 50,8 Mb
Release : 1973
Category : Ionosphere
ISBN : UOM:39015095126127
In order to provide systems engineers with observations and analysis of the amplitude-fading of radio waves traversing the high latitude ionosphere, several different studies were performed. The concept was to develop descriptive and statistical models for the pattern of occurrence and amplitude of scintillations at high latitudes. Then, long terms observations from a limited number of sites could be linked to allow an assessment of the scintillation problem to communication, navigation, and detection systems in the VHF and UHF bands. This report discusses these studies in three chapters. In Chapter 1, general patterns of scintillation occurrence and intensity are presented in the descriptive model of the F-layer irregularities at high latitudes. This is followed in Chapter 2 by a graphical presentation of the data; that is, observations of the 136 MHz beacon of ATS-3. Chapter 3 organizes the observations into a useful format-the cumulative amplitude probability distribution function-for the engineer. A means of adjusting the observations for frequency dependence is provided.
Author : Yongliang Zhang,Larry J. Paxton
Publisher : John Wiley & Sons
Page : 324 pages
File Size : 55,7 Mb
Release : 2015-12-21
Category : Science
ISBN : 9781118978702
The aurora is the most visible manifestation of the connection of the Earth to the space environment and has inspired awe, curiosity, and scientific inquiry for centuries. Recent advances in observing techniques and modeling and theoretical work have revealed new auroral phenomena, provided a better understanding of auroral dynamics, and have led to an enhanced capability for auroral forecasts. This monograph features discussions of: New auroral phenomena due to the ring current ion and polar rain electron precipitation Various auroral forms and hemispheric asymmetry Auroral model development and MHD simulations Application of the auroral observations for radio absorption and scintillation Aurora nowcast and forecast for space weather operations Auroral Dynamics and Space Weather is a valuable contribution for scientists, researchers, space weather operators, and students of Earth's space environment.
Author : Terence James Elkins
Publisher : Unknown
Page : 158 pages
File Size : 43,8 Mb
Release : 1973
Category : Atmospheric models
ISBN : UOM:39015095126036
Four separate articles are collected which deal with the construction of empirical models of the polar ionosphere. The particular emphasis in these articles is towards the radio propagation application of the models. Numerical models of the vertical electron density profiles on the topside and bottomside of the F-region are developed, and a model for sporadic-E is included. Special attention is devoted to features which are characteristic of the polar ionosphere-auroral effects, the trough, and magnetospheric cleft regions. The models are constructed specifically for convenience in computer programming, and in fact, all aspects of the models contained in this report are available in the form of Fortran computer programs. (Author).