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A Novel Compressive Sensing Algorithm for SAR Imaging
Dong, Xiao; Zhang, Yunhua; Dong, X (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China.
Department微波遥感部
Source PublicationIEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
2014
Volume7Issue:2Pages:708-720
ISSN1939-1404
Language英语
KeywordChirp-scaling Algorithm (Csa) Compressive Sensing (Cs) Orthonormal Basis Synthetic Aperture Radar (Sar) Two-dimensional Double Cs Algorithm (2-d-dCsa)
AbstractA novel compressive sensing (CS) algorithm for synthetic aperture radar (SAR) imaging is proposed which is called as the two-dimensional double CS algorithm (2-D-DCSA). We first derive the imaging operator for SAR, which is named as the chirp-scaling operator (CSO), from the chirp-scaling algorithm (CSA), then we show its inverse is a linear map, which transforms the SAR image to the received baseband radar signal. We show that the SAR image can be reconstructed simultaneously in the range and azimuth directions from a small number of the raw data. The proposed algorithm can handle large-scale data because both the CSO and its inverse allow fast matrix-vector multiplications. Both the simulated and real data are processed to test the algorithm and the results show that the 2-D-DCSA can be applied to reconstructing the SAR images effectively with much less data than regularly required.
Indexed BySCI ; EI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/2783
Collection微波遥感部
Corresponding AuthorDong, X (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Dong, Xiao,Zhang, Yunhua,Dong, X . A Novel Compressive Sensing Algorithm for SAR Imaging[J]. IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,2014,7(2):708-720.
APA Dong, Xiao,Zhang, Yunhua,&Dong, X .(2014).A Novel Compressive Sensing Algorithm for SAR Imaging.IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,7(2),708-720.
MLA Dong, Xiao,et al."A Novel Compressive Sensing Algorithm for SAR Imaging".IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING 7.2(2014):708-720.
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