Accession Number : AD0704560

Title :   PROPAGATION OF ELECTROMAGNETIC WAVES OVER A SMOOTH MULTI-SECTION CURVED EARTH - AN EXACT THEORY,

Corporate Author : ESSA RESEARCH LABS BOULDER COLO

Personal Author(s) : Wait,James R.

Report Date : 04 MAR 1970

Pagination or Media Count : 38

Abstract : The report presents a self-contained exposition of ground wave propagation over a smooth inhomogeneous earth model. A factorization procedure is used to obtain an exact solution for a two-dimensional cylindrical model which may have any number of homogeneous sections. It is demonstrated that under most conditions in practice, the solution for the mode conversion coefficients can be simplified to a form which was derived earlier by an application of the compensation theorem. Formulas are given which permit the refinement of earlier approximate calculations if such accuracy is required in future engineering developments such as precise navigation systems. (Author)

Descriptors :   (*RADIO TRANSMISSION, MATHEMATICAL ANALYSIS), ELECTROMAGNETIC RADIATION, CYLINDRICAL BODIES, RADIO NAVIGATION

Subject Categories : Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE