基于海洋回波的高频地波雷达阵列幅相误差校准  

HF Ground Wave Radar Array Calibration for Amplitude and Phase Errors Based on Sea-Echo

作　　者：董志飞[1] 柯亨玉[1] 董晓辉[1] 

机构地区：[1]武汉大学电子信息学院电波传播实验室,武汉430079

出　　处：《电子与信息学报》2007年第6期1437-1440,共4页Journal of Electronics & Information Technology

基　　金：国家863计划项目(2002AA639170);教育部重点项目(01114)资助课题

摘　　要：针对现有无源校准方法在高频地波雷达中失效的问题,该文提出了一种基于海洋回波的高频地波雷达阵列幅相误差校准算法。该算法利用相控阵中相邻天线对同一海流面元回波之间满足的关系,建立多组幅相误差方程并联立求解。通过对模拟的海洋回波的数据进行处理,分析算法的幅相误差校准值的估计偏差。将此算法应用在实测数据处理中,验证了其有效性及可靠性。An algorithm of HF ground wave radar array calibration for amplitude and phase errors based on sea-echo is proposed in this paper. According to the relation between the adjacent antenna sea-echo responses for the same ocean cell, the equations of amplitude and phase errors are developed and solved. The bias of calibration results is analyzed by numerical simulation, and its application in HF ground wave radar OSMAR2000 shows this algorithm effective and credible.

关 键 词：HF地波雷达 阵列校准 海洋回波 

分 类 号：TN959.72[电子电信—信号与信息处理]