天线相位中心的测量和校准方法研究

天线相位中心的精确测量和校准在某些高精度测量应用的场合非常重要，它能有效减少天线测量点不准带来的误差。本文介绍了一种天线相位中心的测量和校准方法，即采用球面近场的天线相位中心的测量方法并给出了天线相位中心的修正方法，采用该方法能准确测量和校准天线的相位中心。试验结果验证了该方法的可行性和准确性。

Research on Measure and Calibration of Antenna Phase Center

The measure and calibration of the antenna phase center is important to the high precise tracking. Because themeasure and calibration of the antenna phase center can reduce the error from the measure point of the antenna . The paper introducesa new method of calibrating GPS receiving antenna phase center in Anechoic Chamber. Based on the practical measured phasepattern, calculating the phase center and correcting the phase pattern repeatedly using the method can improve the calibrationaccuracy. The simulation results validate the calibration method is feasible and can obtain a higher calibrating accuracy.