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	Measurement matrix optimization and mismatch problem compensation for dlsla 3-d sar cross-track reconstruction
	Bao, Qian1,2; Jiang, Chenglong1,2; Lin, Yun1; Tan, Weixian3; Wang, Zhirui4; Hong, Wen1
刊名	Sensors
	2016-08-01
卷号	16期号:8页码:16
关键词	Dlsla 3-d sar Measurement matrix optimization Mutual coherence Measurement matrix mismatch Sparse bayesian inference
ISSN号	1424-8220
DOI	10.3390/s16081333
通讯作者	Bao, qian(baoqiancherry@163.com)
英文摘要	With a short linear array configured in the cross-track direction, downward looking sparse linear array three-dimensional synthetic aperture radar (dlsla 3-d sar) can obtain the 3-d image of an imaging scene. to improve the cross-track resolution, sparse recovery methods have been investigated in recent years. in the compressive sensing (cs) framework, the reconstruction performance depends on the property of measurement matrix. this paper concerns the technique to optimize the measurement matrix and deal with the mismatch problem of measurement matrix caused by the off-grid scatterers. in the model of cross-track reconstruction, the measurement matrix is mainly affected by the configuration of antenna phase centers (apc), thus, two mutual coherence based criteria are proposed to optimize the configuration of apcs. on the other hand, to compensate the mismatch problem of the measurement matrix, the sparse bayesian inference based method is introduced into the cross-track reconstruction by jointly estimate the scatterers and the off-grid error. experiments demonstrate the performance of the proposed apcs' configuration schemes and the proposed cross-track reconstruction method.
WOS关键词	LINEAR-ARRAY ; SPARSE ; RECOVERY ; PURSUIT
WOS研究方向	Chemistry ; Electrochemistry ; Instruments & Instrumentation
WOS类目	Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000382323200009
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2375641
专题	中国科学院大学
通讯作者	Bao, Qian
作者单位	1.Chinese Acad Sci, Inst Elect, Sci & Technol Microwave Imaging Lab, Beijing 100190, Peoples R China 2.UCAS, Beijing 100190, Peoples R China 3.Inner Mongolia Univ Technol, Coll Informat Engn, Hohhot 010051, Inner Mongolia, Peoples R China 4.Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Bao, Qian,Jiang, Chenglong,Lin, Yun,et al. Measurement matrix optimization and mismatch problem compensation for dlsla 3-d sar cross-track reconstruction[J]. Sensors,2016,16(8):16.
APA	Bao, Qian,Jiang, Chenglong,Lin, Yun,Tan, Weixian,Wang, Zhirui,&Hong, Wen.(2016).Measurement matrix optimization and mismatch problem compensation for dlsla 3-d sar cross-track reconstruction.Sensors,16(8),16.
MLA	Bao, Qian,et al."Measurement matrix optimization and mismatch problem compensation for dlsla 3-d sar cross-track reconstruction".Sensors 16.8(2016):16.

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