Database Accuracy Effects on Vehicle Positioning as Measured by the Certainty Factor

912765

10/01/1991

Event
Vehicle Navigation & Instrument Systems
Authors Abstract
Content
Accurate vehicle positioning with respect to a geographical database is fundamental to successful use of in-vehicle navigation systems. In this paper, the authors examine known distortions in the database by their effect on vehicle positioning as measured by the Certainty Factor. The results are shown graphically as a function of distance as the vehicle traverses the distorted region of the database. Three cases are examined using two vehicle positioning algorithms - one more heavily weighted with GPS than the other. A conclusion made is that the Certainty Factor concept is a valid measure for examining database distortions as well as vehicle positioning algorithms.
Meta TagsDetails
DOI
https://doi.org/10.4271/912765
Pages
4
Citation
Borcherts, R., Collier, C., Koch, E., and Bennett, R., "Database Accuracy Effects on Vehicle Positioning as Measured by the Certainty Factor," SAE Technical Paper 912765, 1991, https://doi.org/10.4271/912765.
Additional Details
Publisher
Published
Oct 1, 1991
Product Code
912765
Content Type
Technical Paper
Language
English