Open AccessHybrid method for investigation of electromagnetic scattering interaction between the conducting target and rough sea surface
Author(s) -
Rui Wang,
Lixin Guo,
Simeng Qin,
Zhensen Wu
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.3473
Subject(s) - scattering , physics , surface (topology) , cross section (physics) , computational physics , radar cross section , electromagnetic spectrum , method of moments (probability theory) , rough surface , cylinder , scattering cross section , optics , materials science , geometry , mathematics , quantum mechanics , statistics , estimator , composite material
A current based hybrid method combining the MOM with the Kirchhoff approximation for analysis of scattering interaction between a two-dimensional infinitely long conducting target with arbitrary cross section and a 1-D rough sea surface with PM spectrum is proposed. The electromagnetic scattering region in the hybrid method is split into KA region and MOM regionrespectively. The computational time of the hybrid method mainly depends on the number of unknowns of the target due to the induced current on the rough sea surface does not need to be calculated. The composite bistatic scattering cross section for the infinitely long cylinder above the rough sea surface with PM spectrum is calculatedthe numerical results are compared and verified with those obtained by the conventional MOMwhich shows the high efficiency of the hybrid method. Finallythe influence of the windspeedthe size and location of the target on the bistatic scattering cross section with different polarizations is discussed in detail.