›› 2015, Vol. 24 ›› Issue (4): 48402-048402.doi: 10.1088/1674-1056/24/4/048402
• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇 下一篇
郭宝锋a b, 王俊岭b, 高梅国b, 尚朝轩a, 傅雄军b
Guo Bao-Feng (郭宝锋)a b, Wang Jun-Ling (王俊岭)b, Gao Mei-Guo (高梅国)b, Shang Chao-Xuan (尚朝轩)a, Fu Xiong-Jun (傅雄军)b
摘要: The imaging plane of inverse synthetic aperture radar (ISAR) is the projection plane of the target. When taking an image using the range-Doppler theory, the imaging plane may have a spatial-variant property, which causes the change of scatter's projection position and results in migration through resolution cells. In this study, we focus on the spatial-variant property of the imaging plane of a three-axis-stabilized space target. The innovative contributions are as follows. 1) The target motion model in orbit is provided based on a two-body model. 2) The instantaneous imaging plane is determined by the method of vector analysis. 3) Three Euler angles are introduced to describe the spatial-variant property of the imaging plane, and the image quality is analyzed. The simulation results confirm the analysis of the spatial-variant property. The research in this study is significant for the selection of the imaging segment, and provides the evidence for the following data processing and compensation algorithm.
中图分类号: (Telemetry: remote control, remote sensing; radar)