Journal of Xidian University ›› 2021, Vol. 48 ›› Issue (2): 117-124.doi: 10.19665/j.issn1001-2400.2021.02.015

• Special Issue: Advances in Radar Technology • Previous Articles     Next Articles

Edge diffraction correction for 3D scattering center modeling based on the shooting and bouncing ray technique

LU Jinwen(),YAN Hua(),YIN Hongcheng(),ZHANG Lei(),DONG Chunzhu()   

  1. Science and Technology on Electromagnetic Scattering Laboratory,Beijing Institute of Environmental Features, Beijing 100854,China
  • Received:2020-10-13 Revised:2020-12-11 Online:2021-04-20 Published:2021-04-28


In the traditional scattering center extraction method based on the shooting and bouncing ray(SBR) technique,only the physical optics contribution of the target is considered.However,the physical optics method is unable to describe the contribution of the actual edge diffraction.By comprehensively considering the specular reflection and edge diffraction contribution of the target,an edge diffraction correction method for 3D scattering center modeling based on the SBR technique is proposed.Using the SBR technique and combining the image domain ray tube integration and equivalent edge currents method,the edge diffraction correcting formula for the 3D inverse synthetic aperture radar image is derived.Simulation results show that the proposed method is able to effectively improve the modeling accuracy of the 3D scattering center.

Key words: edge diffraction correction, scattering center modeling, ray tracing, inverse synthetic aperture radar

CLC Number: 

  • TN95