What are the three parts of the satellite navigation system?

Space constellation, ground control and user terminal.

1. space constellation, that is, the satellite constantly emits radio waves carrying navigation messages, and then the receiver completes the information reception. Satellites are mixed navigation constellations, including geostationary orbit satellites, geosynchronous orbit satellites and medium earth orbit satellites.

2. Ground control includes several ground stations and related operation and management facilities. Its main function is to track the operation of the satellite and control the satellite navigation system. The main function of ground control is to monitor the system status and carry out related dispatching work.

3. User terminals include basic products, application systems and terminal equipment. Among them, the basic products include chips that can be compatible with other systems. The main function of user terminal is to track and manage navigation satellites by tracking coordinates and running speed.