TY - GEN
T1 - A virtual differential map-matching algorithm
AU - Xu, Hao
AU - Liu, Hongchao
AU - Norville, H. Scott
AU - Bao, Yuanlu
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2007
Y1 - 2007
N2 - This paper presents development and application of a real-time virtual differential map-matching algorithm. Taking advantage of the slowly drifting property of the GPS errors and the continuity in map errors, the authors first define a differential vector between the vehicle's GPS track points and their corresponding mapped points by historical tracks. This information is then applied to a pre-correction process for examining the on-line vehicle tracks. As the differential vector is only the approximate of the real-time deviation (i.e., virtual differential vector), it is corrected continuously along with the vehicle movement. As a result, the algorithm takes into account both historical information and real-time data of vehicle velocity and direction, as well as the topological structure of the road network map in the map-matching process. The performance of the algorithm is examined through a sample application.
AB - This paper presents development and application of a real-time virtual differential map-matching algorithm. Taking advantage of the slowly drifting property of the GPS errors and the continuity in map errors, the authors first define a differential vector between the vehicle's GPS track points and their corresponding mapped points by historical tracks. This information is then applied to a pre-correction process for examining the on-line vehicle tracks. As the differential vector is only the approximate of the real-time deviation (i.e., virtual differential vector), it is corrected continuously along with the vehicle movement. As a result, the algorithm takes into account both historical information and real-time data of vehicle velocity and direction, as well as the topological structure of the road network map in the map-matching process. The performance of the algorithm is examined through a sample application.
KW - GPS
KW - Map-matching
KW - Vehicle navigation
KW - Virtual differential
UR - http://www.scopus.com/inward/record.url?scp=49249105195&partnerID=8YFLogxK
U2 - 10.1109/ITSC.2007.4357789
DO - 10.1109/ITSC.2007.4357789
M3 - Conference contribution
AN - SCOPUS:49249105195
SN - 1424413966
SN - 9781424413966
T3 - IEEE Conference on Intelligent Transportation Systems, Proceedings, ITSC
SP - 448
EP - 453
BT - 10th International IEEE Conference on Intelligent Transportation Systems, ITSC 2007
Y2 - 30 September 2007 through 3 October 2007
ER -