AGPS and GPS technical principles

source:truck tracking webfleet solutions release time:2022-10-14 Hits: Popular:realtime gps tracker online

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????The basic idea of AGPS is to set up a number of reference GPS receiving machines in a position with a good satellite signal receiving effect, and use the AGPS server to obtain the thick position of the terminal through the interaction with the terminal. Then Wait for the auxiliary data to send it to the terminal, and the terminal is performed by the terminal for GPS positioning. After the measurement is over, the terminal can calculate the position result or send the measurement result back to the AGPS server. The server calculates and returns the result to the terminal. At the same time, the background SP can obtain location information to other service applications

????GPS consists of three independent parts

????Space part: 26 working satellites, 6 spare satellites.

????Ground support system: 1 main control station, 3 injection stations, 5 monitoring stations.

????User device part: Receive the GPS satellite launch signal to obtain the necessary navigation and positioning information, complete the navigation and positioning work after data processing.

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