›› 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

Research on spatial-variant property of bistatic ISAR imaging plane of space target

郭宝锋a b, 王俊岭b, 高梅国b, 尚朝轩a, 傅雄军b   

  1. a Department of Electronic and Optical Engineering, Ordance Engineering College, Shijiazhuang 050003, China;
    b School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China
  • 收稿日期:2014-10-26 修回日期:2014-11-11 出版日期:2015-04-05 发布日期:2015-04-05
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 61401024), the Shanghai Aerospace Science and Technology Innovation Foundation, China (Grant No. SAST201240), and the Basic Research Foundation of Beijing Institute of Technology (Grant No. 20140542001).

Research on spatial-variant property of bistatic ISAR imaging plane of space target

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   

  1. a Department of Electronic and Optical Engineering, Ordance Engineering College, Shijiazhuang 050003, China;
    b School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China
  • Received:2014-10-26 Revised:2014-11-11 Online:2015-04-05 Published:2015-04-05
  • Contact: Guo Bao-Feng E-mail:guobao_feng870714@126.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 61401024), the Shanghai Aerospace Science and Technology Innovation Foundation, China (Grant No. SAST201240), and the Basic Research Foundation of Beijing Institute of Technology (Grant No. 20140542001).

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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.

关键词: space target, bistatic ISAR, imaging plane, spatial-variant property

Abstract: 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.

Key words: space target, bistatic ISAR, imaging plane, spatial-variant property

中图分类号:  (Telemetry: remote control, remote sensing; radar)

  • 84.40.Xb
91.10.Sp (Satellite orbits) 84.40.Ua (Telecommunications: signal transmission and processing; communication satellites)