A Fourth-Order Imaging Algorithm for Spaceborne Bistatic SAR

被引：1
|
作者：
Zhong, Hua [1 ]
Liu, Xingzhao [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200030, Peoples R China
来源：
2006 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-8 | 2006年
关键词：
EETF4; bistatic SAR; transfer function; focusing;
D O I：
10.1109/IGARSS.2006.309
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Eldhuset's research, the fourth-order Extended Exact Transfer Function (EETF4), indicates that the range history of a high spatial resolution spaceborne SAR can be modeled by a fourth-order Taylor expansion in azimuth time. In this paper, this point of view is introduced in bistatic SAR, and the transfer functions in the 2-D frequency and the range-Doppler domains are derived. Using this method, an efficient bistatic focusing solution based on squinted mode chirp scaling (CS) algorithm which accommodates both tandem and TI case is developed. Quantitative analysis and simulations are also provided.
引用
收藏
页码：1196 / 1199
页数：4
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