GPS多频精密单点定位算法

Algorithm of multi-frequency precise point positioning based on GPS

同时播发三个频段的导航信号已经成为新一代GPS卫星的显著特征与未来趋势。文中提出了一种同时利用双频及三频GPS观测数据的PPP定位算法,利用实测数据按照算法进行了解算,并且采用传统GPS双频PPP算法解算相同数据作为参照,结果显示GPS多频PPP算法在定位精度及收敛速度上均优于传统GPS双频PPP算法。

Broadcasting simultaneously triple-frequency navigation signals had become a prominent feature and popular trend of the next generation GPS satellites. In this paper, one PPP algorithm using both double-frequency and triple-frequency GPS observations was presented. The measured data was used to calculate the algorithm according to the algorithm, and the traditional GPS dual-frequency PPP algorithm was used to solve the same data as a reference. The results showed that the GPS multi-frequency PPP algorithm was superior to the traditional GPS dual-frequency PPP algorithm in positioning accuracy and convergence speed.