多模GNSS非差精密定轨快速数据处理方法

针对IGS、MGEX和iGMAS的超大观测网数据,提出一种多模GNSS非差精密定轨的快速数据处理方法,分析超快速轨道产品的精度以及数据处理耗时。结果表明,4系统超快速轨道产品的数据处理效率得到明显提高。由于解算时间缩短,给数据准备和下载提供了充足的时间,全天的观测数据能够全部参与定轨解算,各系统的定轨精度均有不同程度的提高。

Study on the Rapid Data Processing Method of Multi-GNSS Zero-Difference Precise Orbit Determination

Aimed at the vast network data of IGS, MGEX and iGMAS, a rapid data processing method of multi-GNSS zero-difference precise orbit determination is proposed. Then, the accuracy and time consumption of the ultra rapid orbit products are analyzed. The results show that the efficiency of data processing using multi-GNSS ultra rapid orbit products is obviously improved. It provides enough time for data generation and downloading, because less solving time is needed. Thus, the 24 h observation data can wholly participate in orbit determination, and the orbit determination accuracy of each satellite system is also improved to some degree