| 窗函数递推T矩阵法 |
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| 引用本文： | 程堂柏,周建江. 窗函数递推T矩阵法[J]. 航空学报, 2003, 24(2): 157-159 |
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| 作者姓名： | 程堂柏 周建江 |
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| 作者单位： | 南京航空航天大学,信息学院,江苏,南京,210016 |
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| 摘 要： | 引入数字信号处理中的窗函数, 应用于加法定理中, 解决了在入射波为TE 波时, 用递推T 矩阵法计算电大尺寸物体或多个散射体散射场时, 精度不高的问题。另外本文从积分方程出发, 推导出了总体T 矩阵的另一种表示形式, 最后给出的算例证明了引入窗函数的有效性和总体T 矩阵表达式的正确性。
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| 关 键 词： | 窗函数 加法定理 总体T矩阵 加权因子 矩量法 |
| 文章编号： | 1000-6893(2003)02-0157-03 |
| 修稿时间： | 2002-03-06 |
Windowed Function Recursive T-matrix Algorithm |
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| CHENG Tang bai,ZHOU Jian jiang. Windowed Function Recursive T-matrix Algorithm[J]. Acta Aeronautica et Astronautica Sinica, 2003, 24(2): 157-159 |
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| Authors: | CHENG Tang bai ZHOU Jian jiang |
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| Affiliation: | Information College; Nanjing University of Aeronautics and Astronautics; Nanjing 210016; China |
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| Abstract: | A windowed function of data signal processing is introduced and applied to the a ddition theorem, which succeeds in solving the difficult problem: it has a bad r esult when the recursive T matrix is applied to calculate the w ave scattering of electrically large objects and multipole objects in the excita tion of TE wave. Another mode of the total T matrix is derived f rom the integral equation. Finally, the calculation result of two dielectric cy linders proves the effectiveness of the windowed function and the correctness of the expression of the total T matrix. |
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| Keywords: | windowed function addition theorem total T matrix weight MoM |
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