A coherent model of forest scattering and SAR imaging in the VHF and UHF-band

被引：20

作者：

Nguyen, H ^{[1
]}

Roussel, H ^{[1
]}

Tabbara, W ^{[1
]}

机构：

[1] Supelec, Dept Rech Electromagnetisme, Signaux & Syst Lab, F-91192 Gif Sur Yvette, France

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2006年 / 44卷 / 04期

关键词：

coherent scattering model; synthetic aperture radar (SAR) images; ultrahigh frequency (UHF) band; very high frequency (VHF) band;

D O I：

10.1109/TGRS.2005.862521

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

We present a coherent scattering model to determine the forest response to an illuminating plane wave in the frequency band 20-300 MHz. In this frequency band, at low frequencies, it is well-known that the waves penetrate the canopy and allow the detection of a hidden target. We have developed a model based on a domain integral representation of the electric field. A decoupling hypothesis is stated and validated, allowing to significantly reduce the numerical complexity of the problem inherent to integral representations. The simulated scattered field is used in a standard synthetic aperture radar (SAR) imaging algorithm to build horizontal and vertical SAR images of a set of trunks and a concealed target.

引用

页码：838 / 848

页数：11

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