Physical mechanism analysis of complex target scattering center based on ISAR image

The physical mechanism of complex target scattering center formation is analyzed by inverse synthetic aperture radar (ISAR) image in this paper. Firstly, the scattering electric field of the target is calculated by shooting and bouncing rays and the physical theory of diffraction (SBR-PTD) method, and the scattering electric field is used for the ISAR imaging of complex targets. Then the scattering field intensity distribution figure of the target at the center frequency and center azimuth angle of the ISAR image is figured. Finally, the scattering center distribution of the target is analyzed. ISAR image and scattering field distribution intensity figure reflect the scattering center of the target.