New map-matching algorithm based on inertial navigation system

To suppress the divergence of navigation error, a new map-matching algorithm was presented based on the position information of an inertial navigation system (INS). The algorithm proposed the concept of translation vector according to the characteristics of the information of INS. An improved projection method was presented to correct the translation vector. Experimental results of a car moving in real time show that the map-matching algorithm based on INS maximizes the information of INS and is more efficient and precise than the traditional map-matching algorithm. Thus, our findings serve as a foundation for error correction of INS based on map-matching information.