An Improved Phase Gradient Autofocus Method for One-Stationary Bistatic SAR

被引：0
|
作者：
Chen, Shichao [1 ]
Lu, Fugang [1 ]
Wang, Lun [1 ]
Liu, Ming [2 ]
机构：
[1] 203 Res Inst China Ordnance Ind, Xian, Peoples R China
[2] Shaanxi Normal Univ, Sch Comp Sci, Xian, Peoples R China
来源：
2016 IEEE INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING, COMMUNICATIONS AND COMPUTING (ICSPCC) | 2016年
关键词：
bistatic synthetic aperture radar (BiSAR); phase gradient autfocus (PGA); motion compensation;
D O I：
暂无
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：
The motion errors of bistatic synthetic aperture radar (BiSAR) are still considerable after traditional phase gradient autofocus (PGA) for bistatic SAR in some situations, and the residual range-dependent phase errors are still too large to cause defocusing. To overcome the problem, a modified PGA algorithm is proposed in this paper to deal with the range-dependent phase errors for one-stationary bistatic SAR. Besides, the local maximum likelihood theory is embedded in to enhance the performance of the proposed algorithm. Advantages and effectiveness of the proposed algorithm are verified on the real bistatic SAR data.
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页数：5
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