空间目标高分辨距离像运动参数估计

Movement parameter estimation in high resolution range profile of space object

建立了宽带线性调频雷达信号的空间目标回波模型,对目标回波信号进行了分析,分析了空间目标高速运动对目标高分辨一维距离像的影响,提出了用多项式变换进行参数估计的方法。利用估计参数进行运动补偿,消除目标速度和加速度对目标一维距离像的影响。最后给出了仿真结果,验证了本文的分析结果正确和算法有效。

Model of echo for space object from wideband linearly frequency modulated radar signal is established.Signal model is studied in this paper,The effect of space object's hypervelocity to range profile is analyzed.A feasible method of parameter estimation is proposed,using Polynomial Transform.Motion compensation is done with the eastimated values,The effect of space object's hypervelocity to range profile is removed.Simulation results is given finally,The result shows that the analysis is correct and the compensation method is effective.