Technical Paper
A Simulation System to Optimize Map-Matching Techniques on a Vehicular Navigation System
1991-02-01
910061
One of the most important technologies for navigation system is to improve the level of accuracy of vehicle's location. So an autonomous dead reckoning system is effective as a first step, map-matching technique is necessary to eliminate accumulated location errors. For practical use, however the map-matching technique should be evaluated and improved for various driving conditions, because conventional map data are not accurate enough, and there is a wide variety of road conditions. So we have been working to develop a new simulation system to optimize map-matching techniques with a higher degree of efficiency and without so many actual driving tests. This system was designed to make pseudocircumstances of indoor field tests, which allows map-matching techniques to be evaluated more efficiently, and it reduces practical tests to evaluate navigation system. And using this system, we can estimate a goal of specification of sensors.