Journal of Systems Engineering and Electronics ›› 2010, Vol. 32 ›› Issue (4): 745-748.

Previous Articles     Next Articles

Forward-backward method with spectral acceleration algorithm for fast calculation of EM scattering on layered rough surfaces

JI Wei-jie1，TONG Chuang-ming1,2，YAN Pei-wen1   

  1. (1. Missile Inst. of Air Force Engineering Univ., Sanyuan 713800, China；
    2. State Key Laboratory of Millimeter Waves， Southeast Univ., Nanjing 210096, China)
  • Online:2010-04-23 Published:2010-01-03

PDF (PC)

Abstract:

To investigate the scattering of layered rough surfaces, a fast calculation of electromagnetic scattering form layered surface based on the forward backward method (FBM) with spectral acceleration is presented. First, the electric field integral equations of the induced current on the layered rough surface are derived. Secondly, a hybridapproachto the FBM with spectral acceleration algorithm (SAA) is developed. As an example, a layered rough surface with two Gauss rough surfaces is studied. The result is compared with the MoM and FBM, which partly validates the formulation. The accuracy, efficiency and convergence of the method are then studied for rough surfaces with various parameters. As well, the CPU time of FBM/SAA is less than that of FBM.

[an error occurred while processing this directive]