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

计量
- 文章访问数: 3413
- HTML全文浏览量: 100
- PDF下载量: 798
- 被引次数: 0
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.

HTML全文

参考文献(1)

Solomon R C, H Leong, and Antar Y M M. Forward scattering effects in RCS of complex targets in the 3-20 MHz high frequency range [C]. Antennas and Propagation Society International Symposium, Boston, MA, 2008: 1-4.[2]Chauviere C, Hesthaven J S, and Wilcox L C. Efficient computation of RCS from scatterers of uncertain shapes [J].IEEE Transactions on Antennas and Propagation.2007, 55(5):1437-1448[3]Kubicke G, Bourlier C,and Saillard J.High-frequency bistatic scattering by depolarizing, nearly omnidirectional reflectors: Higher order polyhedral reflectors [J].IEEE Transactions on Antennas and Propagation.2008, 56(9):3029-3035[4]Xiao Tian and?Liu Qing-huo. A 3-D enlarged cell technique (ECT) for the conformal FDTD method [J].IEEE Transactions on Antennas and Propagation.2008, 56(3):765-773[5]Han Dong-ho and Polycarpou A C. Ground effects for VHF/HF antennas on helicopter air frames[J].IEEE Transactions on Antennas and Propagation.2001, 49(3):402-412[6]李清亮，葛德彪，等. 求解目标地波散射特性的方法研究[J].微波学报, 1998, 14(3): 23-28.Li Qing-liang and Ge De-biao, et al.. An approach for solving ground wave scattering from objects[J]. Journal of Microwares, 1998, 14(3): 23-28.[7]Weng Cho-chew. Waves and Fields in Inhomogeneous Media Van- Nostrand Reinhold [M]. New York, USA, 1990: 58-101.[8]Li Xiao-feng, Xie Yong-jun, Wang Peng, and Yang Tong-min. High-Frequency method for scattering from electrically large conductive targets in half-space [J].IEEE Antennas and Wireless Propagation Letters.2007, 6:259-262[9]Ansorge H. Electromagnetic reflection from curved dielectric interface [J].IEEE Transactions on Antennas and Propagation.1986, 34(6):842-845[10]Yang J J, Chow Y L, and Fang D G. Fast solution of mixed-potential time-domain integral equations for half-space environments[J].IEEE Transactions on Geosciences and Remote Sensing.2005, 43(2):269-279[11]Acar R C and Dural G. Complete set of closed-form Greens functions for cylindrically layered media. IEEE Antennas and Propagation Society International Symposium, Columbus, Ohio, USA, 2006: 2863-2866.

施引文献

资源附件(0)

访问统计