A motion compensation method for airborne SAR imagery

被引：2
|
作者：
Mo, Shasha [1 ,2 ]
Wang, Yanfei [1 ]
Liu, Chang [1 ]
Wu, Xin [3 ]
机构：
[1] Chinese Acad Sci, Inst Elect, Dept Airborne Microwave Remote Sensing Syst, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] North China Elect Power Univ, Sch Elect & Elect Engn, Beijing 102206, Peoples R China
来源：
IEICE ELECTRONICS EXPRESS | 2015年 / 12卷 / 12期
关键词：
airborne synthetic aperture radar (SAR); approximate total least squares (ATLS); motion errors; phase gradient autofocus (PGA); SYNTHETIC-APERTURE-RADAR; AUTOFOCUS; ERRORS;
D O I：
10.1587/elex.12.20150143
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 novel motion compensation method, which is based on the approximate total least squares (ATLS) algorithm, for wide-beamwidth SAR systems is proposed in this paper. The method is suitable for situations where both the estimated phase errors and the geometry of SAR imagery are corrupted by noise. The precondition that the noise belongs to a certain distribution model is not necessary, which makes it more robust for many kinds of scene content. As a consequence, higher accuracy of the estimated motion error and better focused image are achieved. Simulated and real data imaging demonstrate the validity of the proposed method.
引用
收藏
页码：1 / 8
页数：8
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