合成孔径雷达卫星地基侦察建模与仿真

Modeling and simulation of ground-based reconnaissance of SAR satellite

对合成孔径雷达(SAR)卫星的侦察可以为合成孔径雷达电子战提供有力的支援。在地基侦收站跟踪侦察SAR卫星的背景下,建立了SAR卫星地基侦察模型,该模型利用真实卫星的天线参数及轨道参数,在空间几何模型基础上,获得不同工作模式下方位向的天线增益,并采用插值算法进行处理获得距离向天线增益,通过仿真分析SAR卫星地基侦察信号,为SAR卫星参数估计及工作模式识别等研究奠定了基础。

The reconnaissance of SAR（synthetic aperture radar） satellite can support the electronic war of SAR strongly.A model of reconnaissance under the background of that the ground-based receiver tracking and reconnoitering the SAR satellite is established.Real antenna parameters and orbit parameters are used in the model.Based on the scene model,the antenna gain in azimuth of different kinds of operating modes are obtained,and with the use of interpolation the antenna gain in range is obtained.With the simulation analysis of reconnaissance signal of SAR satellite,it orders the foundation for study on parameter estimation and operating modes recognition.