FAST COMPUTATION OF WIDEBAND RCS USING CHARACTERISTIC BASIS FUNCTION METHOD AND ASYMPTOTIC WAVEFORM EVALUATION TECHNIQUE

被引：3
|
作者：
Sun Yufa Du Yan Shao Yong (Key Lab. of Intelligent Computing and Signal Processing
机构：
来源：
Journal of Electronics(China) | 2010年 / 27卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Method of Moments (MOM); Radar Cross Sections (RCS); Characteristic Basis Func-tion (CBF) method; Asymptotic Waveform Evaluation (AWE); Multi-objects;
D O I：
暂无
中图分类号：
TN011 [电波传播、传播机理];
学科分类号：
080904 ;
摘要：
The Asymptotic Waveform Evaluation (AWE) technique is an extrapolation method that provides a reduced-order model of linear system and has already been successfully used to analyze wideband electromagnetic scattering problems. As the number of unknowns increases, the size of Method Of Moments (MOM) impedance matrix grows very rapidly, so it is a prohibitive task for the computation of wideband Radar Cross Section (RCS) from electrically large object or multi-objects using the traditional AWE technique that needs to solve directly matrix inversion. In this paper, an AWE technique based on the Characteristic Basis Function (CBF) method, which can reduce the matrix size to a manageable size for direct matrix inversion, is proposed to analyze electromagnetic scattering from multi-objects over a given frequency band. Numerical examples are presented to il-lustrate the computational accuracy and efficiency of the proposed method.
引用
收藏
页码：453 / 457
页数：5
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