电讯技术Issue(3)：233-237,5.DOI:10.3969/j.issn.1001-893x.2015.03.001
基于回波数据压缩的MIMO-SAR成像方法
An Imaging Method of MIMO-SAR with Compressed Echo Data
谢矿生1
作者信息
- 1. 武警工程大学 装备工程学院，西安710086
- 折叠
摘要
Abstract
The amount of echo data is huge in multiple input multiple output synthetic aperture radar( MI-MO-SAR) imaging with high resolution. To solve this problem,an imaging method of MIMO-SAR based on compressed echo data is proposed. Firstly,the echo signal model of MIMO-SAR system is analyzed and the phase error induced by MIMO radar is compensated. Secondly,the echo signal is preprocessed by the Range Migration Algorithm( RMA) ,and also the sparsity of the processed data is analyzed. Then the pre-processed data is compressed and transmitted. In the ground receiver,the sparse expression of echo data in Range-Doppler( RD) domain is reconstructed. Finally,the simulation result shows that the amount of the transmitted data by the proposed method is less than that by the conventional MIMO-SAR imaging method.关键词
MIMO-SAR成像/回波数据/压缩感知/距离徙动算法/等效相位中心Key words
MIMO-SAR imaging/echo data/compressed sensing/range migration algorithm/displace phase center分类
信息技术与安全科学引用本文复制引用
谢矿生..基于回波数据压缩的MIMO-SAR成像方法[J].电讯技术,2015,(3):233-237,5.
