数据采集与处理2012，Vol.27Issue(1)：45-50,6.
基于压缩感知的含旋转部件目标ISAR成像方法
ISAR Imaging Algorithm for Targets with Rotating Parts Based on Compressed Sensing
摘要
Abstract
When a radar target contains rotating structures, such as a rotor on a helicopter, the body image of the target is contaminated due to the micro-Doppler effect generated by additional frequency modulations on the received signals. Therefore, an imaging algorithm is proposed for targets with rotating parts based on the compressed sensing theory. Since the target body almost keeps relatively changeless in the imaging region and the rotating parts migrate in the imaging region during the imaging time, the image of main body can be reconstructed by the orthogonal matching pursuit(OMP) algorithm, and the interference generated by the rotating parts is also eliminated. Thanks to compressed sampling, the datum of the returned signal is reduced. Finally, the computer simulations are given to prove the effectiveness of the proposed method, and the performance of the algorithm with different SNR is analyzed.关键词
变换矩阵/压缩感知/旋转部件/ISAR成像Key words
transform matrix/ compressed sensing/ rotating parts/ ISAR image分类
信息技术与安全科学引用本文复制引用
顾福飞,朱丰,池龙,张群,罗迎,刘韵..基于压缩感知的含旋转部件目标ISAR成像方法[J].数据采集与处理,2012,27(1):45-50,6.基金项目
国家重点基础研究发展计划("九七三"计划)(20L0CB731905)资助项目. （"九七三"计划）
