AN N2.5 BACK-PROJECTION ALGORITHM FOR SAR IMAGING

被引：3
|
作者：
Shao, Yunfeng [1 ]
Wang, Robert [1 ]
Deng, Yunkai [1 ]
Liu, Yue [1 ]
Chen, Runpu [1 ]
Liu, Gang [1 ]
机构：
[1] Chinese Acad Sci, Inst Elect, Dept Space Microwave Remote Sensing Syst, Beijing 100190, Peoples R China
来源：
2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2012年
关键词：
SAR; FBP; secondary phase correction; interlace sub-image grid;
D O I：
10.1109/IGARSS.2012.6351088
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：
In this paper, a modified fast back projection (FBP) algorithm is proposed for Synthetic Aperture Radar (SAR) imaging. The azimuth compression of the proposed FBP is divided into sub-image process and finial image process. The secondary phase correction is used to reduce the error cause by approximation before the finial image process. The interlace sub-image grid method makes image quality uniform for all the pixel in the finial image. The applicability limitations and the sub-image two dimensions over sample method are presented. The computational complexity of the proposed FBP is O(N-2.5). Simulation on GPU is given to verify the proposed method efficacious.
引用
收藏
页码：2113 / 2116
页数：4
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