| 抛物线方程在计算三维电大目标电磁散射中的应用 |
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| 引用本文： | 庞艳红,黄志祥,吴先良. 抛物线方程在计算三维电大目标电磁散射中的应用[J]. 合肥工业大学学报(自然科学版), 2007, 30(2): 237-239 |
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| 作者姓名： | 庞艳红 黄志祥 吴先良 |
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| 作者单位： | 安徽大学,计算机智能与信号处理教育部重点实验室,安徽,合肥,230039;安徽大学,计算机智能与信号处理教育部重点实验室,安徽,合肥,230039;安徽大学,计算机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 , 安徽大学博士生专项基金 |
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| 摘 要： | 抛物线方程算法是建立在波动方程轴向近似基础上的一种数值方法,该方法假设电磁波能量沿抛物线轴向的锥形区域传播。文章推导了三维标准的抛物线方程及相应的近场-远场变换理论,并计算了理想导体球的雷达散射截面;数值结果表明抛物线方程算法的引入,在保证一定精度的前提下,大大提高了计算效率,节约了内存。
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| 关 键 词： | 抛物线方程算法 雷达散射截面 电大目标 近场-远场变换 |
| 文章编号： | 1003-5060(2007)02-0237-03 |
| 修稿时间： | 2006-11-14 |
Application of the parabolic equation to calculating electromagnetic scattering of three-dimensional electrically large objects |
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| PANG Yan-hong,HUANG Zhi-xiang,WU Xian-liang. Application of the parabolic equation to calculating electromagnetic scattering of three-dimensional electrically large objects[J]. Journal of Hefei University of Technology(Natural Science), 2007, 30(2): 237-239 |
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| Authors: | PANG Yan-hong HUANG Zhi-xiang WU Xian-liang |
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| Abstract: | The parabolic equation method,which is an efficient and fast numerical approach based on paraxial approximation of the wave equation,models energy propagation in a cone centered on the paraxial direction.In the paper,the three-dimensional standard parabolic equation(SPE) and near-to-far-field transformation are deduced,and the radar cross section(RCS) of a perfectly conducting sphere is calculated.The numerical results demonstrate that the parabolic equation ensures the precision,enhances computational efficiency and saves the memory. |
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| Keywords: | parabolic equation method radar cross section electrically large object near-to-far-field transformation |
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