Theory of Propagation of Low Frequency Terrestrial Radio Waves
Author : J. Ralph Johler
Publisher :
Page : 48 pages
File Size : 26,9 MB
Release : 1967
Category : D region
ISBN :
Author : J. Ralph Johler
Publisher :
Page : 48 pages
File Size : 26,9 MB
Release : 1967
Category : D region
ISBN :
Author : J. Ralph Johler
Publisher :
Page : 36 pages
File Size : 29,23 MB
Release : 1967
Category :
ISBN :
Author : J. Ralph Johler
Publisher :
Page : 36 pages
File Size : 33,20 MB
Release : 1967
Category : D region
ISBN :
The various forms of the solution of Maxwell's equations for the propagation of low frequencies in the waveguide between a spherical earth and a concentric ionosphere are given in concise form. A tutorial discussion is given of the various solutions to acquaint experimenters with the practical techniques which are available. An important feature of all the solutions given is the accommodation of the effect of the effect of the variation with height of the electrical properties of the upper boundary (ionosphere). The forms of the waveguide solution include the zonal harmonics series for the total field, the mode sum and the geometric (wavehop) series. The connections between the various forms are clearly shown. The discussion is illustrated by sample calculations of the geometric series type solution for normal day and night.
Author : K. G. Budden
Publisher : Cambridge University Press
Page : 694 pages
File Size : 26,78 MB
Release : 1988-08-04
Category : Science
ISBN : 9780521369527
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 : H. Bremmer
Publisher :
Page : 372 pages
File Size : 38,91 MB
Release : 1949
Category : Geomagnetism
ISBN :
Author : Janis Galejs
Publisher : Elsevier
Page : 378 pages
File Size : 37,6 MB
Release : 2013-10-22
Category : Technology & Engineering
ISBN : 1483159566
Terrestrial Propagation of Long Electromagnetic Waves deals with the propagation of long electromagnetic waves confined principally to the shell between the earth and the ionosphere, known as the terrestrial waveguide. The discussion is limited to steady-state solutions in a waveguide that is uniform in the direction of propagation. Wave propagation is characterized almost exclusively by mode theory. The mathematics are developed only for sources at the ground surface or within the waveguide, including artificial sources as well as lightning discharges. This volume is comprised of nine chapters and begins with an introduction to the fundamental concepts of wave propagation in a planar and curved isotropic waveguide. A number of examples are presented to illustrate the effects of an anisotropic ionosphere. The basic equations are summarized and plane-wave reflection from a dielectric interface is considered, along with the superposition of two obliquely incident plane waves. The properties of waveguide boundaries are implicitly represented by Fresnel reflection coefficients. Subsequent chapters focus on boundaries of the terrestrial guide; lightning discharges as a natural source of extremely-low-frequency and very-low-frequency radiation; and the mode theory for waves in an isotropic spherical shell. This book will be a useful resource for students and practitioners of physics.
Author : W. T. Blackband
Publisher : Elsevier
Page : 493 pages
File Size : 16,42 MB
Release : 2014-06-28
Category : Technology & Engineering
ISBN : 1483280004
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.
Author : James R. Wait
Publisher :
Page : 50 pages
File Size : 34,56 MB
Release : 1960
Category : Radio wave propagation
ISBN :
Author : J. Ralph Johler
Publisher :
Page : 32 pages
File Size : 14,62 MB
Release : 1966
Category : Harmonic analysis
ISBN :
Author : Hendricus Bremmer
Publisher :
Page : 343 pages
File Size : 19,14 MB
Release : 1962
Category :
ISBN :