| Citation: | GE Zhishan, XIAN Ning, WANG Jinshen, et al. Simulation of electromagnetic scattering from 2D sea surface with 3D electrically large ship target[J]. Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(11): 2299-2304. doi: 10.13700/j.bh.1001-5965.2018.0105(in Chinese)
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The modeling, simulation and analysis of target features are of great significance for synthetic aperture radar (SAR) image-based automatic recognition (ATR) systems. The electromagnetic scattering calculation and radar imaging simulation of the surface ship target are studied. Based on the method of moment method and its parallel computation, the scattering characteristics of electrically large ship targets and sea surface composites are studied, and the scattering characteristics of different frequency bands, incident and sca-ttering directions and polarizations are given. The inverse Fourier transform of the echo data is performed in the frequency domain to obtain a 1D high resolution range profiles of the ship target. The polar coordinate format imaging algorithm is used to obtain the 2D spotlight SAR imaging results, and the contour of the target is reconstructed clearly.
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