Space Rotating Targets Three-Dimensional Reconstruction Based on Multi-aspect Range Profile

Aiming at the problem that the signal aspect has difficulty to achieve 3-D reconstruction of space rotating targets, a novel 3-D reconstruction method is proposed based on wideband multi-view information. First, rotating target model and radar network are established. The analytical model leads to rotating scattering point micro-distance presented with sinusoidal law. Second, Viterbi-Clean algorithm is used to separate curves from echo range profile. Then, generalized Hough transform is used to extract the amplitude of curves, the baseline of curves and the initial phase of curves. Through the above analysis, scattering points are matched and identified. Ultimately, the rotation vector and the rotation axis direction are obtained by using the curve information, and the spatial reconstruction of the rotation targets is realized. Simulation results validate the veracity and effectiveness of the algorithm in this paper.