Volume 4 Issue 2
Apr.  2011
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CHEN Zhao-bing, GUO Jin, LIN Sen. Application of FE-BI to calculation of opto-electronic target scattering[J]. Chinese Optics, 2011, 4(2): 169-174.
Citation: CHEN Zhao-bing, GUO Jin, LIN Sen. Application of FE-BI to calculation of opto-electronic target scattering[J]. Chinese Optics, 2011, 4(2): 169-174.

Application of FE-BI to calculation of opto-electronic target scattering

  • Received Date: 11 Nov 2010
  • Rev Recd Date: 13 Feb 2011
  • Publish Date: 25 Apr 2011
  • In order to solve the contradiction between veracity and validity for calculating the three-dimensional target electromagnetic scattering, a calculator mode about Finite Element-Boundary Integral(FE-BI) was set up to calculate the three-dimensional target electromagnetic scattering. Firstly, the three-dimensional target electromagnetic scattering calculation borderline integral was analyzed, and the vector Green function was introduced. On the basis of the connection between electromagnetism form and three-dimensional cavity form, the three-dimensional hatch cavity borderline mode was set up. Then, the finite element commonly function was established by combining the optical target surface modeling method with the higher order function method, and the application of the FE-BI to calculating three-dimensional target electromagnetic scattering was achieved. Finally, the following example analysis was proved. It is shown that the angle tally is very ideal when the dimensional bosom is empty or anisotropic matter. The consistance has been 90% as compared with the traditional matching method. In conclusion, the veracity and validity of calculation are improved by the proposed method.

     

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