An interferometric-processing based three-dimensional imaging method for space rotating targets

Abstract

Based on interferometric processing theory, a three-dimensional (3-D) imaging method for space rotating targets in wideband radar is proposed in this paper. First, the image feature of space rotating targets on range_slow-time plane is analyzed for radar transmitting LFM signal. Then, an interferometric 3-D imaging model upon range_slow-time plane of space rotating targets is established. Furthermore, the issue of overlapped points on range_slow-time plane is analyzed. Finally, simulation results verify the effectiveness of the proposed method. Generally, the method can obtain the real 3-D positions of targets compared with monostatic radar-based imaging methods, while avoiding the difficulty of joint treatment compared with multistatic radar-based imaging methods.