Computation of Transmissivity and Signal Loss in Inhomogeneous Complex Media

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Journal of the Korea Institute of Military Science and Technology 1999;2(1):30-37.

¹
²

불균일 복합매질의 투과도 및 신호감쇄량 계산

김채영, 정종철

¹경북대학교 전자공학과
²국방과학연구소

Abstract

Transmissivity and the signal loss in soil are computed. An electric field expression for the inhomogeneous complex media modelled by two layers is shown as an integral form. Volume scattering occurs in inhomogeneous media, and iterative Born approximation is used to analyze this scattering effect. The degree of randomness is controlled by specifying the variance and correlation length. Expression for the transmissivity and the signal loss is presented as the parameter of soil moisture contents, soil particle radius, temperature and frequency. The analysis shows that big deviation in signal loss depends on the temperature variation remarkably and the physical reason of unusual level is explained.