| 提升类小波变换加速的模基参数估计算法 |
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| 引用本文： | 陈明生,吴琼,沙威,黄志祥,吴先良.提升类小波变换加速的模基参数估计算法[J].系统工程与电子技术,2010,32(9):1859-1862. |
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| 作者姓名： | 陈明生 吴琼 沙威 黄志祥 吴先良 |
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| 作者单位： | 1. 合肥师范学院物理与电子工程系， 安徽 合肥 230061； ;
2. 安徽大学电子科学与技术学院， 安徽 合肥 230039；;
3. 香港大学电机与电子工程系，香港 |
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| 基金项目： | 国家自然科学基金重点项目，安徽省自然科学基金，安徽省优秀青年科技基金(10040606Y08)资助课题 |
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| 摘 要： | 将提升类小波变换(lifting wavelet-like transform, LWLT)应用于矩量法（method of moment, MOM）快速求解电场积分方程（electric field integral equation, EFIE），对生成的稀疏化线性系统采用模基参数估计（model based parameter estimation, MBPE）算法求解，可获得小波域的宽带解，结合小波逆变换，最终实现目标电磁散射特性的宽频分析。通过不同三维散射体的计算分析，验证了算法的正确性。与传统模基参数估计算法相比，所提算法在计算时间和内存耗费上均有很大改善。
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| 关 键 词： | 提升类小波变换 模基参数估计 电场积分方程 矩量法 |
Model based parameter estimation accelerated by lifting wavelet-like transform |
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| CHEN Ming-sheng,WU Qiong,SHA Wei,HUANG Zhi-xiang,WU Xian-liang.Model based parameter estimation accelerated by lifting wavelet-like transform[J].System Engineering and Electronics,2010,32(9):1859-1862. |
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| Authors: | CHEN Ming-sheng WU Qiong SHA Wei HUANG Zhi-xiang WU Xian-liang |
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| Institution: | 1. Dept. of Physics and Electronic Engineering，Hefei Normal Univ.，Hefei 230061, China; ;
2. School of Electronic Science and Technology, Anhui Univ., Hefei 230039, China;;
3. Dept. of Electrical and Electronic Engineering, The Univ. of Hong Kong, Hong Kong, China |
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| Abstract: | The lifting wavelet-like transform (LWLT) is applied to the method of moments (MOM) for fast solution of electric field integral equations (EFIE), and a sparse linear system is obtained, which is solved by the model based parameter estimation (MBPE) to complete the solution over a wide band in wavelet domain. Finally, the wide band scattering analysis is finished with the help of inverse wavelet transform. The proposed algorithm is validated by considering numerical examples of different shaped three-dimensional objects. Compared with the traditional MBPE method, the presented algorithm can save much CPU time with low memory consumed. |
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| Keywords: | lifting wavelet-like transform (LWLT) model based parameter estimation (MBPE) electric field integral equation (EFIE) method of moment (MOM) |
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