Two-Dimensional Target Profiling by Electromagnetic Backscattering

Saburo ADACHI  Toru UNO  Tsutomu NAKAKI  

IEICE TRANSACTIONS on Electronics   Vol.E76-C   No.10   pp.1449-1455
Publication Date: 1993/10/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on the 1992 Symposium on Electromagnetic Theory)
Category: Inverse Problem
radar target imaging,  conducting body,  extended physical optics method,  two-dimensional profile,  simultaneous iterative reconstruction technique,  

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This paper discusses methods and numerical simulations of one and two dimensional profilings for an arbitrary convex conducting target using the electromagnetic backscattering. The inversions for profile reconstructions are based upon the modified extended physical optics method (EPO). The modified EPO method assumes the modified physical optics current properly over the entire surface of conducting scatterers. First, the cross sectional area along a line of sight is reconstructed by performing iteratively the Fourier transform of the backscattering field in the frequency domain. Second, the two dimensional profile is reconstructed by synthesizing the above one dimensional results for several incident angles. Numerical simulation results of the target profiling are shown for spheroids and cone-spheroid.