干涉测量技术是深空探测任务中高精度获取导航数据观测量的重要技术手段。阐述连线干涉测量原理,详细推导干涉测量信号处理算法,用于准确提取反映航天器测角信息的时延观测量。分析信号处理数学模型,通过仿真验证算法的有效性。由于连线干涉测量具有严格的时间同步特性,同时消除了传播介质公共误差对信号的影响,通过搭建连线干涉测量实验系统实际采集地球同步卫星信号进行分析,结果表明实验成功获取了清晰的干涉条纹,得到高精度的时延观测量信息,从而验证了连线干涉测量信号处理方法的有效性。 Interferometry technology is an important technical means for obtaining the observation data of navigation data with high precision in deep space exploration missions. Describes the principle of measurement of line interference and deduces the algorithm of signal processing for interference measurement in detail, which is used to accurately extract the time-delay observations reflecting the information of the spacecraft’s angle measurement. Analyze the mathematical model of signal processing and verify the validity of the algorithm through simulation. Because of the strict time synchronization characteristic of the wired interference measurement and the elimination of the influence of the public error of the propagation medium on the signal, the geostationary satellite signal was collected by building the experimental system of the wired interference measurement. The results show that the experiment succeeded in obtaining clear interference Streaks to obtain high-precision time delay observation information, thus verifying the effectiveness of the signal processing method of the connection interference measurement.