二代小波插值在目标RCS计算中的应用  

Second generation wavelets interpolation for calculating RCS of targets

作　　者：王健[1] 吴先良[1] 王丽华[1] 

机构地区：[1]安徽大学计算智能与信号处理教育部重点实验室,安徽合肥230039

出　　处：《系统工程与电子技术》2007年第5期673-676,共4页Systems Engineering and Electronics

基　　金：国家自然科学基金资助课题(60371041)

摘　　要：针对二维目标电磁散射特性分析问题,提出了一种基于传统矩量法的新算法。该算法采用二代小波插值理论,通过近相关和远相关分离的办法,实现了阻抗矩阵元素的快速填充,从而实现目标雷达散射截面(RCS)的快速计算。将计算结果与传统矩量法计算的结果进行了比较,数值结果表明:在不影响精度的前提下,尤其是对于电大目标问题,本文方法的计算效率大大提高。A new algorithm based on the method of moments is introduced for the scattering analysis of twodimensional targets. The theory of second generation wavelet interpolation and a method of separating the relationship between close distance and far distance are adopted in this algorithm, through which elements of impedance matrix can be filled efficiently. As a result, the radar cross section（RCS） of arbitrary targets is computed quickly. The numerical results presented are compared with the results obtained by the traditional method of moments. It is shown that, especially for electrically large targets, the complexity of computation is obviously reduced without sacrificing much accuracy.

关 键 词：雷达散射截面 矩量法 二代小波插值 阻抗矩阵 

分 类 号：TN958[电子电信—信号与信息处理] O174.42[电子电信—信息与通信工程]