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金属目标快速分析的不完全LU预处理技术
Incomplete LU pre-conditioner technology for fast analysis of conducting objects
【摘要】 研究了一种用于改善金属目标快速计算迭代收敛特性的预处理技术。采用自适应积分快速算法(AIM)快速精确分析任意结构金属目标的电磁散射特性,着重探讨了运用不完全LU分解方法(ILU)来加速AIM算法的迭代收敛过程的技术。快速算法结合ILU分解技术极大地提高了金属目标电磁特性的分析计算速度。
【Abstract】 A pre-conditioner is studied to improve the convergence of iterative solver in the fast computation for conducting objects.The Adaptive integral method(AIM) is employed to analyze the Radar cross section(RCS) of arbitrarily conducting objects with electrically large size.Then,the Incomplete LU(ILU) pre-conditioner technology is investigated for speeding up the convergence of iterative solver in AIM.The efficiency for simulating large size objects is improved greatly by using the fast algorithm and ILU pre-conditioner technology.
【关键词】 电磁散射;
矩量法;
自适应积分快速算法;
不完全LU分解;
【Key words】 electromagnetic scattering; method of moments; adaptive integral method; incomplete LU;
【Key words】 electromagnetic scattering; method of moments; adaptive integral method; incomplete LU;
- 【文献出处】 电波科学学报 ,Chinese Journal of Radio Science , 编辑部邮箱 ,2008年01期
- 【分类号】TN01
- 【被引频次】1
- 【下载频次】123