Research On The Key Technologies Of GPS Based Vehicle Auto-navigation System

The vehicle auto-navigation system is a crucial component of the intelligent transportation system, whose main function is to supply the drivers with their position, velocity, moving direction and the surrounding geographic circumstance information for their fast, safe and accurate arrival by the aid of electronic map.In this paper, the author introduces firstly the basic theory for the vehicle auto-navigation system, and secondly GPS data receiving programs and the methods of designing and realizing electronic map locating software, which follow the sum-up of and the analysis to the typical integrated navigation system and the algorithm of map matching. At last, the author introduced the double star position system, and aiming at its application in the intelligent transportation system a schedule monitoring&dispatching system model is presented.