Coherent spatial filtering for SAR detection of stationary targets

被引：0
|
作者：
Jao, JK [1 ]
Lee, CF [1 ]
Ayasli, S [1 ]
机构：
[1] MIT, Lincoln Lab, Lexington, MA 02173 USA
来源：
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS | 1999年 / 35卷 / 02期
关键词：
D O I：
暂无
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
Analysis of UHF synthetic aperture radar (SAR) images has revealed a spatially correlated phase structure over a resolved target such as a long wire or a large truck. This phase variation, approximated by a simple, range-dependent factor 4 pi r/lambda, results in a line-shaped Image spatial spectrum. Such image phase and spectral features can be exploited by coherent spatial filtering to improve target-to-clutter ratios of large targets and stationary target detectability in a strong clutter environment.
引用
收藏
页码：614 / 626
页数：13
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