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2008-10-31

Verification of Shadow Region Effect on Radar Cross Section of Targets Using Physical Optics Method

By Hosam El-Ocla and Mitsuo Tateiba
Progress In Electromagnetics Research M, Vol. 5, 81-89, 2008
doi:10.2528/PIERM08100601

Abstract

Our method that uses current generator operator assumes the current on the entire surface of conducting scatterers. While, Physical Optics (PO) method assumes that the surface current generates only on the illumination region. The effect of the shadow region on the scattering waves is, therefore, proved by comparing our exact method with PO method. In this regard, radar cross-section (RCS) is calculated for smooth concave-convex contour. We work on numerical calculation of the RCS and analyze its characteristics with different target configurations including complexity and size. Concave illumination region is postulated with considering targets are taking large sizes of about five wavelengths. Here, we assume waves propagation and scattering from targets in free space and horizontal polarization (E-wave incidence).

Citation


Hosam El-Ocla and Mitsuo Tateiba, "Verification of Shadow Region Effect on Radar Cross Section of Targets Using Physical Optics Method," Progress In Electromagnetics Research M, Vol. 5, 81-89, 2008.
doi:10.2528/PIERM08100601
http://www.jpier.org/PIERM/pier.php?paper=08100601

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