| STABLE SOLUTION OF TIME DOMAIN INTEGRAL EQUATION METHODS USING QUADRATIC B-SPLINE TEMPORAL BASIS FUNCTIONS |
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| 作者姓名： | M. Y. Xia G. H. Zhang G. L. Dai C. H. Chan |
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| 作者单位： | [1]School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China [2]Department of Electronic Engineering, City University of Hong Kong, Kowloon, Hong Kong, China |
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| 摘 要： | This paper is concerned with stable solutions of time domain integral equation （TDIE） methods for transient scattering problems with 3D conducting objects. We use the quadratic B-spline function as temporal basis functions, which permits both the induced currents and induced charges to be properly approximated in terms of completeness. Because the B-spline function has the least support width among all polynomial basis functions of the same order, the resulting system matrices seem to be the sparsest. The TDIE formula-tions using induced electric polarizations as unknown function are adopted and justified. Numerical results demonstrate that the proposed approach is accurate and efficient, and no late-time instability is observed.
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| 关 键 词： | 时域积分方程法 稳定解 二次B样条空间基函数 瞬时散射问题 |
| 修稿时间： | 2006-11-062007-01-29 |
STABLE SOLUTION OF TIME DOMAIN INTEGRAL EQUATION METHODS USING QUADRATIC B-SPLINE TEMPORAL BASIS FUNCTIONS |
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| M. Y. Xia G. H. Zhang G. L. Dai C. H. Chan.STABLE SOLUTION OF TIME DOMAIN INTEGRAL EQUATION METHODS USING QUADRATIC B-SPLINE TEMPORAL BASIS FUNCTIONS[J].Journal of Computational Mathematics,2007,25(3):374-384. |
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| Abstract: | |
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| Keywords: | TDIE methods B-spline temporal basis functions Transient scattering prob-lems |
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