LOCATION SYSTEM AND METHOD FOR DETERMINING LOCATION OF A VEHICLE

摘要

There is provided a method of determining a location of a vehicle including obtaining a curve segment of a path navigated by the vehicle (estimated by an inertial navigation system), selecting one or more candidate curve segments from a road network database resembling the curve segment of the navigated path obtained, identifying one of the candidate curve segments as matching the curve segment of the navigated path, and determining the location of the vehicle based on the matching curve segment identified. The method includes comparing the curve segment of the navigated path with a curve segment from the road network database to determine whether the curve segment from the road network database qualifies as a candidate curve segment, and scaling at least one of the curve segment of the navigated path and the curve segment from the road network database to reduce a difference in length therebetween for the comparison.