Title :
Asymptotic method for analysis of RCS of arbitrary targets composed by dielectric and/or magnetic materials
Author :
De Adana, F. Saez ; González, I. ; Gutiérrez, O. ; Cátedra, M.F.
Abstract :
A method for the analysis and prediction of monostatic radar cross-section (RCS) of targets of complex geometry is presented. These targets can be formed by multilayer structures of dielectric and magnetic materials. The geometry representation of the targets is given as a collection of NURBS (nonuniform rational B-spline) surfaces. Physical optics (PO) is used to obtain the scattered field of each surface. The PO integral is expressed as a function of the parametric co-ordinates of the surface and is solved using Gordon´s (1975) method for planar surfaces and the stationary phase method (SPM) for curved ones. Fresnel coefficients are included in the PO approach to take into account the effect of the RAM material
Keywords :
dielectric materials <anal. of RCS of arbitrary targets composed by dielec. and/or mag. materials, asymptotic method>; electromagnetic fields <anal. of RCS of arbitrary targets composed by dielec. and/or mag. materials, asymptotic method>; electromagnetic wave absorption <anal. of RCS of arbitrary targets composed by dielec. and/or mag. materials, asymptotic method>; electromagnetic wave scattering <anal. of RCS of arbitrary targets composed by dielec. and/or mag. materials, asymptotic method>; inhomogeneous media <anal. of RCS of arbitrary targets composed by dielec. and/or mag. materials, asymptotic method>; integral equations <anal. of RCS of arbitrary targets composed by dielec. and/or mag. materials, asymptotic method>; magnetic materials <anal. of RCS of arbitrary targets composed by dielec. and/or mag. materials, asymptotic method>; physical optics <anal. of RCS of arbitrary targets composed by dielec. and/or mag. materials, asymptotic method>; radar cross-sections <anal. of RCS of arbitrary targets composed by dielec. and/or mag. materials, asymptotic method>; splines (mathematics) <anal. of RCS of arbitrary targets composed by dielec. and/or mag. materials, asymptotic method>; Fresnel coefficients; Gordon´s method; NURBS surfaces; PO integral; RAM material; RCS analysis; arbitrary targets; asymptotic method; complex geometry targets; dielectric materials; geometry representation; magnetic materials; monostatic radar cross-section; multilayer structures; nonuniform rational B-spline; parametric co-ordinates; physical optics; planar surfaces; radar absorbing materials; scattered field; stationary phase method;
Journal_Title :
Radar, Sonar and Navigation, IEE Proceedings -
DOI :
10.1049/ip-rsn:20030508
