Optimum Distribution of Multiple Location ISAR and Multi-angles Fusion Imaging for Space Target
MA Juntao①② GAO Meiguo① HU Wenhua② XIONG Di① SHI Lin②
①(School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China) ②(Department of Electronic and Optical Engineering, Ordance Engineering College, Shijiazhuang 050003, China)
Abstract：The spatially separated observation angles from the multiple inverse synthetic aperture radar sensors can be converted to the accumulation time of the same target, which can improve the cross-range resolution of ISAR image by the coherent fusion of raw echo signals collected from different sensors. To solve the issue of multiple radar sensors coherent fusion ISAR imaging of space target moving on orbit, the radar location optimal method based on the orbital prior of the space target is proposed to improve the efficiency of the echoes fusion, the spatial- variant property of the fusion imaging plane of space target is analyzed using orbital motion model to solve the range Migration Through Resolution Cells (MTRC) and time-varying Doppler. The simulation results based on real orbit of space station confirm the effectiveness of the proposed method.
马俊涛, 高梅国,胡文华,熊娣,史林. 空间目标多站ISAR优化布站与融合成像方法[J]. 电子与信息学报, 2017, 39(12): 2834-2843.
MA Juntao, GAO Meiguo, HU Wenhua, XIONG Di, SHI Lin. Optimum Distribution of Multiple Location ISAR and Multi-angles Fusion Imaging for Space Target. JEIT, 2017, 39(12): 2834-2843.
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