A reappraisal of the validity of IEM model

Author

Wu, T.-D. ; Chen, K.S. ; Fung, A.K. ; Su, Z. ; Trouch, P. ; Hoeben, Rudi ; Mancini, Marco

Author_Institution

Nat. Central Univ., Chung-Li, Taiwan

Volume

3

fYear

1997

fDate

3-8 Aug 1997

Firstpage

1365

Abstract

A surface scattering model based on the integral equation method is examined in terms of its applicability to laboratory measurements. The Fresnel reflection coefficients used in the model have been approximated as a function of the incidence angle at low frequency and as a function of the specular angle at high frequency. Based on a limited set of experimental measurements, a transition function is suggested for estimating the Fresnel reflection coefficients in the intermediate regions. Results of comparison indicate that the IEM is accurate and practical to use. Issues raised from dielectric information are also addressed

Keywords

backscatter; electromagnetic wave scattering; geophysical techniques; integral equations; radar cross-sections; radar theory; remote sensing by radar; Fresnel reflection coefficients; IEM model; backscattering; geophysical measurement technique; incident angle; integral equation method; land surface; radar remote sensing; radar scattering; specular angle; surface scattering model; terrain mapping; transition function; Backscatter; Dielectric measurements; Frequency; Fresnel reflection; Integral equations; Laboratories; Rough surfaces; Scattering; Surface roughness; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing, 1997. IGARSS '97. Remote Sensing - A Scientific Vision for Sustainable Development., 1997 IEEE International

Print_ISBN

0-7803-3836-7

Type

conf

DOI

10.1109/IGARSS.1997.606448

Filename

606448