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针对三站连续波干涉仪系统，根据实时测得的系统场区大气折射率漂移数据，应用几何光学方法，从理论上估计了连续波干涉仪系统两条微波基线（分别为３４、１５ｋｍ和２８．５ｋｉｎ）传输的相位稳定性。得出ｓｍｉｎ基线传输电长度漂移最大值分别为１．１９１ｃｍ和１．８３１ｃｍ，４５ｍｉｎ基线传输电长度漂移最大值分别为１１．０９７ｃｍ和１０．７０３ｃｍ，几何光学估算法可在数量级上估算基线传输的相位漂移。要改善干涉仪系统的工作性能，基传和系统设备两方面引起的相位不稳定都要力。以考虑，更应努力解决系统设备的跳变问题。
Aiming at the three-station continuous wave interferometer system, based on real-time measurement of the atmospheric refractive index drift data of the system field, the geometrical optics method is used to theoretically estimate the two microwave baseline of the continuous wave interferometer system (34,15 km and 28 respectively .5kin) transmission phase stability. The results show that the maximum values of smin baseline transmission length drift are 1.191cm and 1.831cm, respectively, and the maximum values of 45min baseline transmission length drift are 11.097cm and 10.703cm, respectively. Geometrical optics estimation method can estimate the baseline transmission Phase drift. To improve the performance of the interferometer system, both basic and system equipment caused by the instability of the phase are forces. To consider, but should strive to solve the system equipment jump problem.