离散小波变换加速导体目标散射计算的分析  

Discrete Wavelet Transform in Speeding up Solving the Scattering of Conductor Target

作　　者：赵玉磊[1] 鞠智芹[1] 童创明[1] 钟卫军[1] 

机构地区：[1]空军工程大学导弹学院,三原713800

出　　处：《微波学报》2008年第S1期23-27,共5页Journal of Microwaves

摘　　要：如今矩量法被广泛地应用于解决电磁场问题中,但是应用矩量法所得到的矩阵是稠密阵,如果直接求解无疑耗费大量的时间,若能将矩阵稀疏化,那么求解起来就会省时得多。针对这个问题,本文将给出离散小波变换方法稀疏化矩量矩阵,并以Daubechies三阶尺度函数为例,阐述小波的一些基本性质以及滤波系数的构造,论述小波变换原理和详细推导了变换矩阵的构造。并给出一个全新的算例——二维导电平面上的平行双槽线上的散射问题。Method of moments (MOM) is applied extensively in electromagnetic, but the impedance matrix from MOM is so dense that it will consume prohibitive time if using the direct solver. If we can sparse the dense matrix, then it is obvious time saving. To this question, we will sparse the MOM-matrix using discrete wavelets transform method. And then we will take the Daubechies wavelets of order N=3 for example, introducing some basic properties and the construction of coefficients of the filter of Wavelets. But we...

关 键 词：小波变换 DAUBECHIES小波 变换矩阵 滤波系数 

分 类 号：TN011[电子电信—物理电子学]