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2009-03-11

Simulating Wide Band Radar Response from PEC Targets Using Phase Extracted Basis Functions

By Su Yan, Shiquan He, Zai-Ping Nie, and Jun Hu
Progress In Electromagnetics Research B, Vol. 13, 409-431, 2009
doi:10.2528/PIERB09020802

Abstract

In this paper, we first review the Phase Extracted (PE) basis functions by recalling the derivation which shows that the induced current on a PEC surface has the propagating phase factor the same as the incident wave in a scattering problem. The wide band characteristic of this PE basis functions has been investigated by demonstrating that very wide band radar response from PEC objects can be simulated accurately by using PE bases, only based on a single coarse mesh grid. Besides, the resulted current coefficients are shown to vary slowly and smoothly with frequency changing and can be interpolated and extrapolated in very wide band easily. The piecewise cubic Hermite interpolation/extrapolation method with respect to the current coefficients is used to obtain the coefficients in the frequency band of interest. Numerical examples demonstrate very good accuracy and high efficiency in wide band radar response prediction in terms of the amplitude of the scattering field as well as its phase distribution.

Citation


Su Yan, Shiquan He, Zai-Ping Nie, and Jun Hu, "Simulating Wide Band Radar Response from PEC Targets Using Phase Extracted Basis Functions," Progress In Electromagnetics Research B, Vol. 13, 409-431, 2009.
doi:10.2528/PIERB09020802
http://www.jpier.org/PIERB/pier.php?paper=09020802

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