Title: An HSGPS, inertial and map-matching integrated portable vehicular navigation system for uninterrupted real-time vehicular navigation

Authors: C. Basnayake, O. Mezentsev, G. Lachapelle, M.E. Cannon

Addresses: Department of Geomatics Engineering, University of Calgary, 2500 University Drive, N.W., Calgary, AB, T2N 1N4, Canada. ' Department of Geomatics Engineering, University of Calgary, 2500 University Drive, N.W., Calgary, AB, T2N 1N4, Canada. ' Department of Geomatics Engineering, University of Calgary, 2500 University Drive, N.W., Calgary, AB, T2N 1N4, Canada. ' Department of Geomatics Engineering, University of Calgary, 2500 University Drive, N.W., Calgary, AB, T2N 1N4, Canada

Abstract: Robust real-time vehicle positioning is a critical requirement for many in-vehicle technologies. However, no standalone positioning system is capable of providing uninterrupted and accurate vehicular navigation data in all environments that a vehicle could encounter. This paper presents a portable vehicular navigation system that combines high-sensitivity GPS, inertial sensors and map-matching techniques to provide uninterrupted vehicular navigation information in even the harshest environments for individual sensor technologies. This system eliminates the need for complex initialisation routines required for high-end inertial sensors, making it a truly portable system. The map-matching component establishes a link between the vehicle and spatial information useful for many more in-vehicle technologies such as route guidance and location-based services. The system performance is evaluated and presented in an urban centre with extreme levels of GPS signal degradation.

Keywords: vehicle navigation; GPS; inertial sensors; map matching; vehicle positioning; portable navigation system; route guidance; vehicle information systems; global positioning systems.

DOI: 10.1504/IJVICS.2005.007589

International Journal of Vehicle Information and Communication Systems, 2005 Vol.1 No.1/2, pp.131 - 151

Published online: 08 Aug 2005 *

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