GPS Data Acquisition and Processing Based on VC

This paper firstly introduces the basic working principle of GPS and the communication protocol which is used by GPS re-ceiver,and then with the example of the GPS 15L chip made by GARMIN Technology company,a solution based on the MSComm component of Visual C++6.0 is presented,which achieves the transmission and display of position messages from GPS receiver to PC via serial port (RS232)。Finally a part of the codes are provided。