收稿日期: 2009-09-03
修回日期: 2009-11-16
网络出版日期: 2010-03-15
Scattering interference model in synthetic aperture radar
Received date: 2009-09-03
Revised date: 2009-11-16
Online published: 2010-03-15
孙建涛 , 张平 . 合成孔径雷达散射波干扰模型[J]. 中国科学院大学学报, 2010 , 27(2) : 212 -217 . DOI: 10.7523/j.issn.2095-6134.2010.2.010
Because real data of scattering interference for SAR are not available, a physical model of scattering interference for SAR is presented, and the scenario scatterer distribution characteristics are analyzed in this paper. The simulation results demonstrate that the scatterer incident angles for very diffuse scenario and moderately diffuse scenario cover the whole beam of SAR in azimuth, and then the spatial filtering algorithms are useless. However, numbers of correlated scatterer pairs increase when more samples are employed for the moderately diffuse scenario. Thus, space fast-time adaptive filter can be used to suppress scattering interference for moderately diffuse scenario.
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