半空间复杂目标的高频分析方法

李晓峰; 谢拥军; 陈博韬; 樊君

doi:10.3724/SP.J.1146.2009.00096

半空间复杂目标的高频分析方法

doi: 10.3724/SP.J.1146.2009.00096

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出版历程
- 收稿日期: 2009-01-19
- 修回日期: 2009-10-16
- 刊出日期: 2010-02-19

High-Frequency Analysis on Scattering from Complex Conductive Targets in Half Space

摘要

摘要: 该文研究了半空间内复杂导体目标散射的高频求解方法。分析半空间电磁波的传播规律，将半空间并矢格林函数引入传统的物理光学方法，等效电磁流法方法中，推导出半空间物理光学算法、半空间等效电磁流算法，同时结合图形电磁学和射线追踪方法，分别对半空间复杂目标的消隐和多重散射进行考虑，与半空间目标面元、棱边散射场相叠加，快速有效地计算了半空间复杂目标的雷达散射截面。数值结果证明了方法的有效性和准确性。
- 图形电磁学; 半空间格林函数; 半空间物理光学方法; 雷达散射截面
Abstract: The high-frequency method for solving the scattering from electrically large conductive targets in half space is presented in this paper. The High-frequency method is deduced by introducing the half-space Greens function into the conventional method of physical optics, method of equivalent currents. Combined with the graphical-electromagnetic computing method and ray tracing technique that account for shadowing, multiple scattering in half space, one may calculate the radar cross-section of a conductive targets object in a half space. The numerical results show that this method is efficient and accurate.

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