| MRTD算法在目标电磁散射特性分析中的应用 |
| |
| 引用本文： | 王丽华,吴先良. MRTD算法在目标电磁散射特性分析中的应用[J]. 合肥工业大学学报(自然科学版), 2007, 30(1): 108-111 |
| |
| 作者姓名： | 王丽华 吴先良 |
| |
| 作者单位： | 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;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 |
| |
| 基金项目： | 国家自然科学基金资助项目(60371041)，安徽省教育厅重点资助项目(2002kj32) |
| |
| 摘 要： | 对基于Daubechies小波尺度函数的时域多分辨分析(MRTD)算法进行了详细论述,推导了MRTD算法的完全匹配层(PML)吸收边界条件,为克服传统MRTD方法中基函数存在着非局部性的缺点,在源的加入上采用了纯散射场方法;并应用该算法对多目标的电磁散射特性进行了分析,数值结果表明,MRTD算法与传统的时域有限差分法结果相吻合,大大节约了计算资源。
|
| 关 键 词： | 时域有限差分法 时域多分辨分析算法 完全匹配层 |
| 文章编号： | 1003-5060(2007)01-0108-04 |
| 修稿时间： | 2005-12-19 |
Application of the MRTD algorithm to electromagnetic scattering analysis |
| |
| WANG Li-hua,WU Xian-liang. Application of the MRTD algorithm to electromagnetic scattering analysis[J]. Journal of Hefei University of Technology(Natural Science), 2007, 30(1): 108-111 |
| |
| Authors: | WANG Li-hua WU Xian-liang |
| |
| Abstract: | The multiresolution time-domain(MRTD) algorithm based on the scaling function of the Daubechies wavelet is introduced,and the perfectly matched layer(PML) absorbing boundary condition for the algorithm is deduced.In order to overcome the difficulties due to the nonlocalized property of the MRTD basis functions,the pure scattered-field formulation is adopted.The method presented is applied to the scattering analysis of multiple conducting objects,and the numerical results are compared with those by the traditional finite-difference time-domain(FDTD) method.It is shown that the computational resource is reduced drastically without sacrificing much accuracy. |
| |
| Keywords: | finite-difference time-domain method multiresolution time-domain algorithm perfectly matched layer |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
