中文摘要：

准确估计侦察目标的多普勒参数直接影响着SAR侦察干扰效果的好坏.在研究SAR侦察模式机理的基础上,根据SAR侦察机与目标的运动几何关系,推导了SAR侦察模式下的多普勒参数计算公式.然后,利用Radon变换和魏格纳分布的方法估计出侦察目标的多普勒参数.仿真实验结果证明,该参数估计方法在不同的工作模式下都取得了良好的效果.

英文摘要：

Accurate estimation of the Doppler parameters directly decides the effect of SAR reconnaissance.Based on the study of the mechanism of SAR reconnaissance mode,the Doppler parameter expression on SAR reconnaissance mode is derived according to the geometry relation between the receiver and satellite.Then,the Doppler parameters of the reconnaissance target are estimated accurately by using the method of Radon transform and Wigner distribution.The simulation results show that the method is effective for different operation mode.