POLARIMETRIC SCATTERING FROM NATURAL SURFACES AT 225-GHZ

被引：13
|
作者：
MEAD, JB
LANGLOIS, PM
CHANG, PS
MCINTOSH, RE
机构：
[1] Microwave Remote Sensing Laboratory, Department of Electrical and Computer Engineering, University of Massachusetts, Amherst
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 1991年 / 39卷 / 09期
关键词：
D O I：
10.1109/8.99051
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Polarimetric radar measurements at 225 GHz which demonstrate that the normalized Mueller matrix may be approximated in terms of a single parameter are presented. The depolarization ratio, defined as the ratio of cross-polarized to co-polarized normalized radar cross section, is shown to accurately predict backscatter from vegetation (trees and grass), and scattering from terrain at low incidence angles (snowcover and sand). The depolarization ratio also predicts the standard deviation of the scattered field ellipse parameters.
引用
收藏
页码：1405 / 1411
页数：7
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