多通道成像卫星误差校正方法研究  

Calibration and remedy for multi-channel imaging satellites

作　　者：刘颖[1] 王洪洋[1] 廖桂生[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071

出　　处：《电波科学学报》2005年第5期614-618,共5页Chinese Journal of Radio Science

基　　金：国家自然科学基金(69831040);"十五"预研基金(413070502)

摘　　要：研究高速运动多通道成像卫星的误差校正问题,提出了利用地面角反射体回波数据进行阵列校正的新方法,该方法简单易行,校正效果良好,使得存在沿航向误差和通道幅相误差情况下卫星多通道成像成为可能。通过计算机仿真实验验证了方法的有效性。The calibration and remedy of the multi-channel imaging satellites moving in high speed is studied and a new calibration method using echoes from a reflector is proposed in this paper. The method is easy to implement and has a good cali- bration effect, and it can estimate the gain and phase errors in channels and the position errors of satellites in along-track direction. The validity of the proposed calibration method is illustrated through computer simulations.

关 键 词：多通道 幅相误差 阵列校正 

分 类 号：TN957[电子电信—信号与信息处理]