Electromagnetic Time-Reversal Imaging Using Grouped Sub-Arrays for   Resolution Enhancements

CORC > 北京大学 > 信息科学技术学院

	Electromagnetic Time-Reversal Imaging Using Grouped Sub-Arrays for Resolution Enhancements
	Li, Yuan-Qi ; Zhang, Xiang-Qian ; Xia, Ming-Yao
刊名	APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL
	2017
关键词	Grouped sub-arrays imaging resolution enhancement signal normalization time-reversal WIRELESS COMMUNICATIONS ULTRASONIC FIELDS TARGET ENVIRONMENT MEDIA
英文摘要	A new time-reversal (TR) imaging method using grouped sub-arrays for resolution enhancements is presented in this work. The method gives the image of the searching space for each target or scattering center at its own optimum instant, in contrast to the traditional TR imaging method that shows a snapshot of the whole domain at a specified instant. By introducing a grouping scheme that divides the time-reversal mirror (TRM) as many sub-TRMs, resolution enhancements in both cross-range and co-range directions are realized by means of destructive multiplication and incoherent superposition of the normalized sub-TRM imaging signals at nontarget positions. The present method permits all targets or scattering centers to be rendered at equal visibility, and has no requirement on the number of transmitters. Several simulation examples are provided to examine the performance of the proposed method.; NSFC [61531001, 61271032]; SCI(E); ARTICLE; 6; 517-523; 32
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/472955]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Li, Yuan-Qi,Zhang, Xiang-Qian,Xia, Ming-Yao. Electromagnetic Time-Reversal Imaging Using Grouped Sub-Arrays for Resolution Enhancements[J]. APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL,2017.
APA	Li, Yuan-Qi,Zhang, Xiang-Qian,&Xia, Ming-Yao.(2017).Electromagnetic Time-Reversal Imaging Using Grouped Sub-Arrays for Resolution Enhancements.APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL.
MLA	Li, Yuan-Qi,et al."Electromagnetic Time-Reversal Imaging Using Grouped Sub-Arrays for Resolution Enhancements".APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL (2017).