Imaging of Objects through Lossy Layer with Defects
The imaging process when a lossy layer is present between the target and the sensor is demonstrated. The lossy layer is inhomogeneous because of the existence of deffects, whose dimensions are relatively small. We model the lossy layer as a homogeneous layer with effective parameters, such as permittivity, and use transmission line theory (TLT) to reconstruct the reffection coefficient without obstacle by supposititiously adding a LHM layer or an active medium with exactly opposite signs of permittivity and permeability of the obstacle layer and with the same thickness. Inversion of the transfer matrix in transmission line theory (TLT) is used to cancel the effect of the lossy layer as an obstacle in this inverse problem. The performance of this method is confirmed by some imaging examples.
Xiangxiang Cheng Bae-Ian Wu Tomasz M. Grzegorczyk Jin Au Kong
The Electromagnetics Academy at Zhejiang University, Zhejiang University, Hangzhou 310058, China Dep Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA The Electromagnetics Academy at Zhejiang University, Zhejiang University, Hangzhou 310058, China Res
国际会议
Progress in Electromagnetics Research Symposium 2007(2007年电磁学研究新进展学术研讨会)(PIERS 2007)
北京
英文
2057-2062
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）