NSSC OpenIR  > 微波遥感部
Interferometric radar compressive sensing imaging with direct downsampling
Zhang, Yunhua; Dong, Xiao; Zhai, Wenshuai; Shi, Xiaojin; Yang, Qingshan; Li, Dong; Kang, Xueyan
作者部门微波遥感部
会议录名称MIKON 2018 - 22nd International Microwave and Radar Conference
2018
页码267-270
语种英语
ISBN号9788394942113
摘要An experiment of direct downsampling on echo signals from a moving train by a Ku-band interferometric noise radar was successfully conducted and high-resolution ISAR images were reconstructed through compressed sensing (CS). The radar transmitted stepped-frequency chaotic noise signals (SF-CNSs) covering a total bandwidth of 4.02GHz by 20 subpulses with a frequency step of 200MHz and each subpulse is of 220MHz bandwidth. Benefitted from the random characteristics of the transmitted waveforms, just simple uniform downsampling is required for applying CS to reconstruct radar images. In the Experiment, 10MHz and 1MHz sampling rates were used far less than the Nyquist rate required for recovering a signal of 220MHz bandwidth by ordinary approach. From the obtained interferometric phases (InPhes) along the train body, we also observed the micro-motion (m-M) phenomenon of the train which was reported previously. © 2018 Warsaw University of Technology.
关键词Interferometric Inverse Synthetic Aperture Radar Stepped-frequency Chaotic Noise Signals (Sf-cnss) Downsampling Compressed Sensing
会议名称22nd International Microwave and Radar Conference, MIKON 2018
会议日期May 14, 2018 - May 17, 2018
会议地点Poznan, Poland
收录类别EI
文献类型会议论文
条目标识符http://ir.nssc.ac.cn/handle/122/6371
专题微波遥感部
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Zhang, Yunhua,Dong, Xiao,Zhai, Wenshuai,et al. Interferometric radar compressive sensing imaging with direct downsampling[C],2018:267-270.
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