作者
Xue-Shi Li, Guang-Cai Sun, Peng Shao, Yu-Feng Wu, Meng-Dao Xing
发表日期
2014/11/19
期刊
电子与信息学报
卷号
36
期号
11
页码范围
2659-2665
出版商
电子与信息学报
简介
In multichannel Synthetic Aperture Radar-Ground Moving Targets Indication (SAR-GMTI) systems, three problems are led by utilizing the conventional Post Doppler-Space-Time Adaptive Processing (PD-STAP) technique. Firstly, the target Doppler spectrum is wrapped because of the Doppler shift caused by the cross-track velocity of the moving target. The ambiguities are appeared if directly using the matched filtering. Secondly, in the case of the signal undersampling, a Pulse Repeating Frequency (PRF) shifting is caused in the azimuth direction for a moving target in the focused image. This makes the moving target detection much more complicated and challenging. Thirdly, the traditional PD-STAP technique also has a high computational complexity. To overcome these problems, a novel space-time adaptive processing method based on Deramp processing is proposed. Simulation results validate the …
引用总数
学术搜索中的文章
XS Li, GC Sun, P Shao, YF Wu, MD Xing - 电子与信息学报, 2014