Compressive Sensing in ISAR Spectrogram Data Transmission
In the process of transmitting the returned signal information to the processors on the ground,a method of compressing and reconstructing ISAR data based on compressive Sensing (CS) is proposed in this paper. The method is revealed as follows.Firstly,the returned signal is transformed to spectrogram field (fast time-cross range plane).Secondly,the CS technology is utilized to compress spectrogram,and then the compressed spectrogram can be transmitted so that the transmitting data is reduced obviously. Thirdly,the reconstructing method based on the orthogonal matching algorithm is employed to recover the spectrogram information.Simulation results show the reconstructed spectrogram is quite similar to the spectrogram uncompressed,and the fine iSAR image can be reconstructed by using the recovered spectrogram.
ISAR image Data transmission Compressive Sensing Orthogonal matching algorithm
F.Zhu Q.Zhang Y.Xiang Y.Q.Feng
Inst.of Telecommunication Engineering,AFEU,Shaanxi,Xian,710077 Inst.of Missile.AFEU,Shaanxi,Sanyuan,713800 Inst.of Science,AFEU,Shaanxi,Xian,710051
国际会议
2009 2nd Asian-Pacific Conference on Synthetic Aperture Radar(第二届亚太合成孔径雷达会议)
西安
英文
89-92
2009-10-26（万方平台首次上网日期，不代表论文的发表时间）