GPS module is an integrated circuit consisting of RF chip, baseband chip and core CPU, plus peripheral circuits. Most of the current GPS module chips are ST/HD/MTK series.
Car navigation system needs to rely on the global GPS satellite positioning system to determine the location of the car. One of the GPS location tracking modules is the satellite signal receiver. It receives and demodulates the broadcast C/A code signals from satellites. the GPS module derives the longitude, latitude and altitude of the car receiver by computing the pseudo-distance from each satellite. The GPS tracking module continuously outputs the positioning information in NMEA format through the serial communication port.
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