Unparallel trajectory bistatic spotlight SAR imaging

被引：3
|
作者：
Zhang Lei [1 ]
Jing Wei [1 ]
Xing MengDao [1 ]
Bao Zheng [1 ]
机构：
[1] Xidian Univ, Key Lab Radar Signal Proc, Xian 710071, Peoples R China
来源：
SCIENCE IN CHINA SERIES F-INFORMATION SCIENCES | 2009年 / 52卷 / 01期
基金：
中国国家自然科学基金;
关键词：
unparallel trajectory bistatic SAR; instantaneous Doppler wavenumber; series reversion; frequency scaling algorithm;
D O I：
10.1007/s11432-009-0012-1
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A new approach for unparallel trajectory bistatic spotlight SAR imaging is proposed. The approach utilizes the concept of instantaneous Doppler wavenumber and introduces two variants, the sum-range and subtraction-range, to develop the 2D frequency analytical formula. Based on the assumption of plane wavefront, the transmitting and receiving Doppler are separated and formulated via series reversion. And frequency scaling is applied to focus image. The algorithm is with high computational efficiency, and provides well focus for limited scene imaging. Simulation result confirms the validity of the approach.
引用
收藏
页码：91 / 99
页数：9
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