Vehicular precise positioning system reference architecture
J3269
This recommended practice will define a reference high-level architecture for precise positioning system of passenger vehicles for V2X applications, with the goal of delivering submeter positioning accuracy performance as much as possible. The architecture will comprise GNSS (aka GPS) and IMU (Inertial Measurement Unit) with the options for including other sensors, such as wheel encoders, camera, lidar, as well as maps. The positioning system is intended to estimate absolute position, course angle, and speed of the vehicle in a global coordinate system. This document will also offer implementation recommendations.
Rationale: This document provides the specifications useful for designing and implementing high precision positioning systems that enables or augments V2X safety applications for lightweight vehicles. This level of reference designs is not addressed in SAE J2945/1 and J3161/1 standards.
