Automotive Dead-Reckoning Navigation System Based on Vehicle Speed and YAW Rate

Global positioning system (GPS) is the most common used technology for navigation and geo-location. In the last years the GPS performance increases, but remains limitations on vehicle continuous positioning information when GPS signals are degraded or are not available as in urban canyons, dense streets with high buildings and trees, tunnels, mountains, etc. In typical urban area the GPS required accuracy is available 90% of the time. The dead-reckoning technique is a viable solution to provide vehicle uninterrupted positioning when GPS fails. This paper develops a novel low-cost dead-reckoning system that recurrently determines, over an elapsed time of course, the vehicle current position (latitude and longitude) based on the vehicle speed and yaw rate and the last known GPS position. The sensors for these required variables are already present on modern vehicle generations for other purposes. Simulation results validate the proposed dead-reckoning solution.