关键词: 车载定位系统；GNSS；动态差分技术；惯性导航；组合导航；车用无线通信技术

Abstract: With the development and popularization of the application of Internet of vehicles and autonomous driving, the importance of vehicle positioning systems is becoming more and more important. Based on the principle and architecture of the vehicle positioning system, this paper focuses on the principle and application of the key technologies of vehicle high-precision positioning, including traditional satellite navigation, differential positioning, inertial navigation and combined navigation with their combination schemes, and finally, the development of vehicle positioning system is also discussed and summarized. In order to meet the needs and challenges brought by scenarios related to autonomous driving, the vehicle positioning system has gradually added differential positioning, inertial navigation system and the combination of these two for coupling navigation on the basis of the original global navigation satellite system (GNSS) positioning, which further strengthens the anti-interference capability and dynamic adaptation capability of vehicle positioning with obscured environment while improving the positioning accuracy.

Key words: Vehicle positioning system; GNSS; Real time kinetic; Inertial navigation; Combined navigation; Vehicle to everything