中国物理B ›› 2009, Vol. 18 ›› Issue (4): 1503-1511.doi: 10.1088/1674-1056/18/4/036
• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇 下一篇
王蕊, 郭立新, 麻军, 吴振森
Wang Rui(王蕊)†, Guo Li-Xin(郭立新), Ma Jun(麻军), and Wu Zhen-Sen(吴振森)
摘要: A current based hybrid method (HM) is proposed which combines the method of moment (MOM) with the Kirchhoff approximation (KA) for the analysis of scattering interaction between a two-dimensional (2D) infinitely long conducting target with arbitrary cross section and a one-dimensional (1D) Gaussian rough surface. The electromagnetic scattering region in the HM is split into KA region and MOM region. The electric field integral equation (EFIE) in MOM region (target) is derived, the computational time of the HM depends mainly on the number of unknowns of the target. The bistatic scattering coefficient for the infinitely long cylinder above the rough surface with Gaussian roughness spectrum is calculated, and the numerical results are compared and verified with those obtained by the conventional MOM, which shows the high efficiency of the HM. Finally, the influence of the size, location of the target, the rms height and correlation length of the rough surface on the bistatic scattering coefficient with different polarizations is discussed in detail.
中图分类号: (Electromagnetic wave propagation; radiowave propagation)