The Design Of Vehicle Positioning System Based On Bei Dou Navigation Satellite System

With the development of modern society towadrs informational society,the navigation system is playing a more and more important role in the developing of Chinese Defense industry and the everyday lives of people, The demand of society for navigation system is increasing day by day.Vehicle positioning system plays an important role in today’s information society and has great potential for application.In a long time our country’s vehicle positioning system is based on the GPS system of the United States. With the establishing and vigorously promoting of Beidou industry chain by our country, the vehicle positioning system based on BeiDou Navigation Satellite System has great potential and application prospect.The thesis study the vehicle positioning system based on BeiDou Navigation Satellite System and desine the corresponding software and hardware system as well as building the system and carry out the related test. The application of the system is also discussed. The main contents are as follows:Firstly,the thesis introduces the basic theory of the BeiDou Navigation Satellite System and NTRIP protocol as well as the whole desine of the system.Then the thesis analyzes the function of the user terminal, the ground enhanced service system and the monitoring terminal as well as the demand of the terminal. It also designs the principles of software and hardware according to the function of the whole system.Secondly,The hardware and software platform of the system are introduced and explained. At the hardware,the system choose the TD302 chip as the main differential chip and the corresponding Beidou positioning receiver.I desing the construction of related platform. At the software, the thesis describes the establishment of the network connection of the terminal with the ground station and the system platform,the signal transmission and reception between the terminal and system platform,as well as the display and analysis of positioning system data, the system is verified. Its application in vehicle positioning and other industries are also discussed.