Radar cross section of arbitrarily shaped bodies of revolution

Author

Wu, Te-kao

Author_Institution

Hughes Aircraft Co., El Segundo, CA, USA

Volume

77

Issue

5

fYear

1989

fDate

5/1/1989 12:00:00 AM

Firstpage

735

Lastpage

740

Abstract

The radar cross section (RCS) of an arbitrarily shaped, homogeneous dielectric body of revolution (BOR) is evaluated by the surface integral equation (SIE) formulation and the method of moments. Method accuracy is verified by the good agreement with the exact solutions for the RCS of a dielectric sphere. To demonstrate the advantages of this method, the RCS for a complex BOR model of human torso is computed with a nonaxially incident plane wave. Seven Fourier modes are considered in the computation. The SIE and approximate integral equation (AIE) formulations are next given for the RCS evaluation of a composite dielectric and conducting BOR. For the cases considered, both formulations give the same surface currents and RCS results. However, significant savings in computer storage and CPU time are realized for the AIE approach, since only one current (electric or magnetic) need be determined for RCS evaluation

Keywords

integral equations; radar cross-sections; Fourier modes; RCS evaluation; approximate integral equation; arbitrarily shaped bodies; body of revolution; composite dielectric/conducting body; homogeneous dielectric body; method of moments; moments method; radar cross section; surface currents; surface integral equation; Dielectric constant; Humans; Integral equations; Magnetic analysis; Magnetic resonance; Magnetic separation; Moment methods; Radar cross section; Scattering; Torso;

fLanguage

English

Journal_Title

Proceedings of the IEEE

Publisher

ieee

ISSN

0018-9219

Type

jour

DOI

10.1109/5.32063

Filename

32063