利用室外旋转天线法估计导航卫星接收机天线相位中心偏差

摘要

导航卫星接收机的天线相位中心偏差是GNSS 测量应用中必须考虑的一项误差。本文研究了在室外条件下利用旋转天线法测量和估计导航卫星接收机的天线相位中心偏差的理论和方法，并给出具体的操作步骤和相应的参数估计方法。算例采用位于西安某科研单位楼顶两台G PS／BDS双模卫星导航接收机组成超短基线，通过实测数据分别解算得到实验所用的接收机天线的BDS B1频率和GPS L1频率天线相位中心偏差的参考值，并进行精度分析，证明此方法是一种在实际应用中精度较高且操作性强的方法。%The antenna phase center offset of navigation satellite receiver is a GNSS measurement error in applications ,w hich must be considered .In this study ,with outdoor conditions ,the theory and methods of the rotating antenna phase center measurement and es‐timation for navigation satellite receiver were researched ,andproposing the specific steps of corresponding parameter estimation method .The experiment wasoperated in Xi'an ,onthe roof of a research unit ,two GPS/BDS dual mode satellite navigation receivers composing USBL .By the measured data the authors calculate antenna phase center offsets respectively on the BDSB1 frequency and the GPS L1 frequency ,and the precision analysisproves this method is a workable approach with high precision .