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。
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.
作者
刁桂杰
倪虹
杨亮
Diao Guijie;Ni Hong;Yang Liang(Science and Technology on Complex System Control and Intelligent Agent Cooperation Laboratory,Beijing 100074,China;Beijing Electro-mechanical Engineering Institute,Beijing 100074,China)
出处
《系统仿真学报》
CAS
CSCD
北大核心
2020年第1期78-86,共9页
Journal of System Simulation
关键词
SAR回波
射频仿真
三维场景
制导系统
SAR signal
radio frequency simulation
three-dimensional scene
guidance system
