【作者】 刘晨； 张冠杰； 张涛；

【Author】 Liu Chen,Zhang Cuanjie,Zhang Tao (Xi’an Electronic Engeering Research Institute,ShanXi Xi’an,710100)

【机构】 西安电子工程研究所；

【摘要】 本文分析了天线抖动对SAR回波相位的影响以及RDM(Reflectivity Displacement Method)算法在考虑天线抖动时的适用性和利于工程实现的改进。利用仿真平台在径向上加入高频扰动,同时沿航向进行运动补偿,并基于实测数据使用RDM迭代算法验证该理论的可行性,均取得满意效果。更多还原

【Abstract】 This paper analyzes the influence of antenna jitter on phase of SAR echo signals,and RDM(Reflectivity Displacement Method) algorithm’s applicability when antenna jitter is considered.Also an improment of RDM which make it more convenient for engineering implementation is discussed.Using simulation platform,adding high-frequency phase disturbance while we carry out motion compensation only along the course direction,and veirfy the feasibilty of this theory by iterative algorithm based on real SAR data,both got satisfactory results.更多还原