Mode-expansion method for calculating electromagnetic waves scattered by objects on rough ocean surfaces

被引：20
|
作者：
Zhang, Y
Lu, J
Pacheco, J
Moss, CD
Ao, CO
Grzegorezyk, TM
Kong, JA
机构：
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
[2] MIT, Elect Res Lab, Cambridge, MA 02139 USA
[3] MIT, Lincoln Lab, Lexington, MA 02420 USA
[4] BAE Syst, Burlington, MA 01803 USA
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2005年 / 53卷 / 05期
关键词：
electromagnetic wave scattering; method of moments (MoM); mode-expansion method (MEM); rough surface;
D O I：
10.1109/TAP.2005.846721
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A mode-expansion method that needs less than 6% the number of unknowns required by conventional method of moments is introduced in calculating two-dimensional electromagnetic wave scattering from perfectly conducting objects on rough ocean surfaces. Modes are selected for dominant propagation waves so that the number of unknowns in the matrix equation are minimized. In the numerical examples, ocean surfaces are modeled as perfectly conducting rough surfaces described by the Pierson-Moskowitz power spectrum. Bistatic radar cross-sections (RCS) of various objects, such as ship-like and low-observable targets, are calculated for a 1-GHz incident plane wave and are validated for accuracy against an iterative MoM solution.
引用
收藏
页码：1631 / 1639
页数：9
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