一种双站SAR的ECS成像算法

An Algorithm of Extended Chirp Scaling Imaging of Bistatic SAR

在常规SAR的ECS算法的基础上,给出了双站SAR回波模型和RD域距离方程,提出了一种基于双站SAR的ECS算法,推导了ECS算法的3种补偿因子,并分析了算法中距离向成像位置.最后通过计算机仿真,验证了该算法的有效性。

On the basis of the conventional algorithm, the echo model ofbistatic SAR and the range equation in RD area were given, the bistatic SAR based ECS algorithm was presented, the three types of compensation factors for the algorithm were derived, and then the imaging position in the direction of range was also analysed. Finally, the feasibility of the algorithm is validated by simulation results.