Optimized Design of GPS Positioning Performance of Vehicle Integrated Navigation

With the development of Satellite Navigation Technology, GPS navigation has become more and more widely used in vehicles. The good interactive experience of HUD and LCD instruments in the navigation function has made more and more car owners accustomed to using car navigation. Therefore, the positioning accuracy and experience of navigation have become more high demands. In the case of a single satellite navigation weak signal, the bit error rate increases when the signal is analysed, and the accuracy of the calculation result becomes inaccurate. In the complex road environment, the satellite signal is reflected on the surface of the building, and the navigation drift is serious. The tunnel cannot search for satellites, and the navigation performance is poor. This paper optimizes the navigation positioning performance from the aspects of integrated navigation-based design scheme, hardware selection, DR module algorithm, map feedback, data transmission, spatial layout, which has significant significance for improving navigation performance and experience.