Chebyshev Approximation for Fast Frequency- Sweep Analysis of Electromagnetic Scattering Problem  

作　　者：CHEN Mingsheng WU Xianliang HUANG Zhixiang SHA Wei 

机构地区：[1]Key Laboratory of Intelligent Computing and Signal Processing, Anhui University Hefei 230039, China

出　　处：《Chinese Journal of Electronics》2006年第4期736-738,共3页电子学报（英文版）

基　　金：This work is supported by the National Natural Science Foundation of China （No.60371041）.

摘　　要：To complete the scattering analysis of an arbitrary shaped perfectly electric conductor over a wide frequency band, the Chebyshev polynomial of first kind is applied. The Chebyshev nodes within a given frequency range are found, and then the surface electric currents at these nodes are computed by the method of moments. The surface current is expanded in a polynomial function via the Chebyshev approximation. Using this function, the electric current distribution can be obtained at any frequency within the given frequency range. The numerical results are compared with the results obtained by the method of moments, and the complexity of computation is reduced obviously.

关 键 词：Method of moments Chebyshev approximation Wide-band radar cross section. 

分 类 号：O44[理学—电磁学]