一种基于Radon变换的SAR多普勒参数估计方法  

A Method of Estimating of Doppler Parameter of SAR Based on Radon Translation

作　　者：朱振波[1] 陈风波[1] 汤子跃[1] 

机构地区：[1]空军雷达学院空天基系,武汉430019

出　　处：《武汉理工大学学报（交通科学与工程版）》2011年第1期126-129,133,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

摘　　要：分析了SAR的方位向多普勒参数与工作几何结构的关系,基于此提出了利用Radon变换实现SAR多普勒参数估计的方法.该方法能够准确地估计出实时多普勒中心和多普勒调频率,且避免了多普勒中心估计中的多普勒模糊问题,计算机仿真验证了该算法的有效性.This paper firstly makes mathematical study on the relation between Doppler parameter and the SAR working configuration.Based on the above analysis,this paper provides a new Doppler parameter estimating algorithm of SAR by Radon transform,which can get accurate Doppler center and Doppler rate and avoid the problem of Doppler blur.As a result,it is a feasible Doppler parameter estimating algorithm of SAR,of which the validity is also proved by the simulation of computer at last.

关 键 词：多普勒参数估计 RADON变换 多普勒模糊 

分 类 号：TN929.3[电子电信—通信与信息系统]