| 应用AWE技术和等效偶极子法快速计算目标宽带RCS |
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| 引用本文： | 杨帅帅,孙玉发.应用AWE技术和等效偶极子法快速计算目标宽带RCS[J].计算物理,2012,29(3):406-410. |
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| 作者姓名： | 杨帅帅 孙玉发 |
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| 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 |
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| 基金项目： | 国家自然科学基金(61172020);安徽省科研计划(10021303031);安徽大学“211工程”学术创新团队基金资助项目 |
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| 摘 要： | 将渐近波形估计(AWE)技术结合等效偶极子(EDM)法应用于任意三维导体目标宽带雷达散射截面(RCS)的快速计算.首先利用等效偶极子法实现阻抗矩阵的快速填充及其多阶导数矩阵的快速计算,并利用内外迭代近场预处理技术加速矩阵方程的求解,进而应用渐近波形估计技术实现宽带雷达散射截面(RCS)的快速计算.数值计算表明:本文方法在保证计算精度的前提下,提高了计算效率.
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| 关 键 词： | 渐近波形估计 等效偶极子法 预处理技术 雷达散射截面 |
Fast Computation of Wide-band RCS for Objects with AWE Technique and Equivalent Dipole-moment Method |
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| YANG Shuaishuai
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SUN Yufa.Fast Computation of Wide-band RCS for Objects with AWE Technique and Equivalent Dipole-moment Method[J].Chinese Journal of Computational Physics,2012,29(3):406-410. |
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| Authors: | YANG Shuaishuai SUN Yufa |
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| Institution: | (Key Laboratory of Intelligent Computing & Signal Processing,Ministry of Education,Anhui University,Hefei,230039,China) |
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| Abstract: | Asymptotic waveform evaluation(AWE) technique in conjunction with equivalent dipole-moment(EDM) method is applied to obtain radar cross section(RCS) of an arbitrarily shaped three-dimensional(3-D) perfect electric conductor(PEC) over a frequency band.EDM method is used to achieve fast filling of impedance matrix and more derivative matrices.Inner and outer iterative near field preconditioning technique is used to solve matrix equation.Wide-band radar cross section is achieved by using AWE technique.Numerical results show that the computational efficiency is improved significantly with ensuring accuracy. |
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| Keywords: | asymptotic waveform evaluation equivalent dipole-moment method preconditioning technique radar cross section |
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