GPS system composition and principle and GPS related basic knowledge, first look at the composition of the GPS system.

As you can see from the GPS system composition diagram, lte gps tracker consists of the following three segments. ,

Space Segment (SS) : Space segment consists of GPS satellites. ,

Control Segment (CS) : The control segment is used to control and monitor the operation of GPS. The Control segment includes a Master Control Station, Located in Colorado, USA), several Monitoring stations, Ground Control stations, and Ground GPS Antenna.

User Segment (US) : User segment is mainly the user of GPS system. In GPS, Users are classified into Civilian Users and Military Users. Among them, military users need authorization from relevant authorities to access higher-precision lte gps tracker data.

The three segments of GPS will communicate by means of the communication frequency band and data encapsulation format specified by GPS. The space segment and the control segment can communicate bidirectional, while the user segment can only obtain data from the space segment.

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