BACK PROJECTION ALGORITHM FOR HIGH RESOLUTION GEO-SAR IMAGE FORMATION

被引：23
|
作者：
Li Zhuo [1 ]
Li Chunsheng [1 ]
Yu Ze [1 ]
Zhou Jian [1 ]
Chen Jie [1 ]
机构：
[1] BeiHang Univ, Sch Elect & Informat Engn, Beijing, Peoples R China
来源：
2011 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2011年
关键词：
Geosynchronous Orbit; Synthetic Aperture Radar; Image Formation Algorithm;
D O I：
10.1109/IGARSS.2011.6048967
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：
Geosynchronous orbit synthetic aperture radar (GEO-SAR) has a good application prospect for its shorter repeat period and a wider swath compared to low Earth orbit SAR. Doppler characteristic of the echo is analyzed. The Doppler history varies frequently in space and approximates a high order signal. A back projection algorithm for high resolution GEO-SAR based on satellite-ground geometry model is preliminarily proposed. Steps of the algorithm are given. The simulation results indicate the algorithm can achieve high resolution image formation in large scene. The azimuth resolution is less than 2m.
引用
收藏
页码：336 / 339
页数：4
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