Fast Prediction and Analysis of Target Radar Characteristics

In this paper, a high frequency electromagnetic scattering acceleration method for targets is proposed, which combines CPU multi-core parallel technology, GPU hardware acceleration technology and KD-Tree traversal technology. The high frequency electromagnetic scattering model of complex targets including ships with cavity, angular reflector arrays and ships is established, which can meet the needs of rapid evaluation of large targets. In this paper, a fast prediction method for multiple scattering range image position is proposed. By combining multiple scattering ray diversity with ray path phase prediction theory, the multiple scattering equivalent apparent position of the center is deduced rapidly, and the multipath scattering mechanism and action process of the target containing cavity are revealed. Through the simulation and analysis of ship target, the mapping relationship between the strong scattering contribution formed by multiple scattering of large target and its specific geometric structure is established.