小波矩量法在理想导体柱散射分析中的应用

Application of wavelet MOM to the scattering analysis of the perfect circular cylinder conductor

利用Daubechies离散小波变换 ,结合双共轭梯度法对平面波照射的无限长理想导体圆柱的表面电流进行了分析 ,将其结果与Haar小波展开点选配方法、经典矩量法的计算结果加以比较 .在不影响精度的情况下 ,小波变换法大大降低了计算复杂程度 。

Two methods using wavelet functions in analysis of electromagnetic scattering problems are presented. By using the fast wavelet transform in conjunction with the conjugate gradient method, we present the performance for the solution of a circular cylinder, with the results compared with those by the other wavelet method and the method of moment. The total complexity is found to have been reduced without sacrificing much accuracy. The way is very important for the fast computation of the scattering problem and can be extended to the analysis of solid materials of other shapes.