干涉仪测向系统相位误差校准方法

Phase error calibration methods of direction-finding system of an interferometer

通过分析干涉仪测向系统的相位误差来源,对接收机各通道的相位不一致性、接收机前端无源部分的相位差异、工作环境温度变化及系统噪声引起的相位差变化进行了分析与探讨,并针对不同的误差来源提出了相应的校准方法和设计原则,对于工程实践具有一定的借鉴意义。

With the analysis of the sources of the phase error of the direction-finding system of the interferometer,the inconsistent phases in each channel of the receiver,the phase differences in the passive part of the front end of the receiver,the temperature change of the working environment,and the phase difference change caused by the system noise are analyzed and discussed. The corresponding calibration methods and design principles are proposed for different error sources,having a certain reference significance for the engineering applications.