系统仿真学报 ›› 2020, Vol. 32 ›› Issue (1): 78-86.doi: 10.16182/j.issn1004731x.joss.17-9076

• 物理效应/模拟器仿真技术 • 上一篇    下一篇

三维场景SAR射频仿真技术研究

刁桂杰1,2, 倪虹2, 杨亮2   

  1. 1. 复杂系统控制与智能协同技术重点实验室,北京 100074;
    2. 北京机电工程研究所,北京 100074
  • 收稿日期:2017-04-15 修回日期:2017-08-22 发布日期:2020-01-17
  • 作者简介:刁桂杰(1982-),男,河北吴桥,博士,高工,研究方向为射频仿真,SAR仿真;倪虹(1974-),女,北京,硕士,研究员,研究方向为射频仿真、目标及干扰仿真;杨亮(1984-),山西运城,博士,研究方向为射频仿真。

Study on Three-dimensional Scene SAR Radio Frequency Simulation Technology

Diao Guijie1,2, Ni Hong2, Yang Liang2   

  1. 1. Science and Technology on Complex System Control and Intelligent Agent Cooperation Laboratory, Beijing 100074, China;
    2. Beijing Electro-mechanical Engineering Institute, Beijing 100074, China
  • Received:2017-04-15 Revised:2017-08-22 Published:2020-01-17

摘要: 三维场景合成孔径雷达(SAR)射频仿真对于SAR系统调试、SAR信号处理算法的研究具有重要意义。SAR射频回波信号仿真是SAR射频仿真技术的核心。结合SAR回波模型,在SAR射频仿真总体方案的基础上,提出了三维场景SAR射频回波实时仿真方法,根据SAR雷达平台飞行航迹信息实时计算成像场景后向散射系数、雷达与目标距离、遮挡因子、天线方向图加权因子等关键参数,实现了三维场景的SAR射频回波信号实时模拟,验证了该方法的正确性。

关键词: SAR回波, 射频仿真, 三维场景, 制导系统

Abstract: Synthetic Aperture Radar (SAR) radio frequency simulation technology for three-dimensional scene is significant for SAR system test and the research of signal processing algorithms. A SAR radio frequency signal simulation is the core technology. Based on preliminary SAR frequency simulation scheme, a real-time SAR radio frequency signal simulation method for three-dimensional scene is proposed, and key parameters such as backward scattering coefficient, range between radar and target, shielding factor, antenna pattern weighting factor are calculated in real time according to the flight path information of SAR radar platform. Finally, the test results proved the validity of the method.

Key words: SAR signal, radio frequency simulation, three-dimensional scene, guidance system

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