In modern technology,the daily polar motion parameters are estimated with the orbit parameters in the precise orbit determination process.So,the precision o
MGEX(The Multi-GNSS Experiment)and iGMAS(international GNSS Monitoring & Assessment System)are two important global tracking networks of the BDS satellite n
The reliable real-time precise satellite orbit is the prerequisite and foundation of real-time precise positioning service for Global Navigation Satellite S
Currently,five BDS-3 experiment satellites are transmitting both BDS-2 signals and new signals for users.They are equipped with high-precision rubidium or/a
High precision mobile mapping system has become an effective method for solving the data acquisition problem and the high precision position system is the k
The solar radiation perturbation is an important factor affecting the accuracy of satellite orbit,it related to the satellite attitude and satellite radiati
The international GNSS continuous Monitoring and Assessment System(iGMAS)is developed as a service platform for multi-GNSS and the Product Integration and S
Ionospheric delay is an important source of error in the positioning of the Global Navigation Satellite System(GNSS).In the case of active ionosphere,the io
Autonomous Navigation Based on Inter-Satellite Link(ISL)is a hot spot in the future development of satellite navigation system.The new generation Beidou nav