VELOCITY ESTIMATION OF MOVING TARGETS USING SAR

被引：5
作者：
Wang, Junfeng [1 ]
Liu, Xingzhao [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Shanghai, Peoples R China
来源：
2011 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2011年
关键词：
Synthetic aperture radar (SAR); moving targets; velocity estimation;
D O I：
10.1109/IGARSS.2011.6048968
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：
A new scheme is presented for the velocity estimation of moving targets in synthetic aperture radar (SAR) imaging. First, the moving target is imaged using a range-Doppler algorithm, where clutter lock, range correction and focus filtering are automatically done. Then, the parameters obtained in this algorithm are used to estimate the velocity of the moving target. The Doppler centroid is used to estimate the velocity of the moving target in range. The out-of-focus coefficient is used to estimate the velocity of the moving target in azimuth. Especially, the ambiguity of the Doppler centroid is resolved according to the range-correction coefficient and the out-of-focus coefficient. This scheme is accurate and computationally efficient.
引用
收藏
页码：340 / 343
页数：4
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