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Titre du document / Document title

Improved car navigation system using path-associated map-matching

Auteur(s) / Author(s)

WUK KIM (1) ; JEE G.-I. (2) ; JANG GYU LEE (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Automatic Control Research Center, School of Electrical Engineering, Seoul National University, Seoul, COREE, REPUBLIQUE DE
(2) Dept. of Electronics Engineering, Konkuk University, Seoul, COREE, REPUBLIQUE DE

Résumé / Abstract

In this paper, a new map-matching method for the more accurate positioning in urban areas, which generates the path-association hypotheses and determines the most likely driving path, is developed. When the digital road maps are constructed previously by the essential means of ITS (Intelligent Transportation System), we can get the more accurate position of a land-vehicle by comparing the measured position with the road-network of the map. This work adopts the multiple target-tracking method originally detecting the aircraft or missiles by radar and proposes the path-association hypotheses and computes their probabilities to make a more accurate decision on the driving path. As each measurement is received, vehicle's states of each hypotheses are estimated on the constrained road using corresponding Kalman Filter. As more observations come in, the path-association probabilities are calculated and the most likely path is determined. Also the correction of the navigation filter using the results of proposed map matching increases the reliability of positioning. Above path-associated algorithm successfully tracks the vehicle on the digital map in several field experiments. The proposed map matching as a part of the car navigation systems will give more accurate and reliable driving information.

Source / Source

Congrès
9th world congress of the International Association of Institutes of Navigation :   ( Amsterdam, 18-21 November 1997 )
International Association of Institutes of Navigation. World congress No9, Amsterdam , PAYS-BAS (18/11/1997)
1997-1999  [Note(s) :  [570 p.]] [Document : 8 p.] (7 ref.) Illustration : Illustration ;

Langue / Language

Anglais

Mots-clés anglais / English Keywords

Road transportation

;

Intelligent system

;

Navigational aid

;

Localization

;

Measurement accuracy

;

Numerical simulation

;

Probability distribution

;

Route

;

GPS system

;

International conference

;

Mots-clés français / French Keywords

Transport routier

;

Système intelligent

;

Aide navigation

;

Localisation

;

Précision mesure

;

Simulation numérique

;

Loi probabilité

;

Itinéraire

;

Système GPS

;

Congrès international

;

Mots-clés espagnols / Spanish Keywords

Transporte por carretera

;

Sistema inteligente

;

Ayuda navegación

;

Localización

;

Precisión medida

;

Simulación numérica

;

Ley probabilidad

;

Itinerario

;

Sistema GPS

;

Congreso internacional

;

Localisation / Location

INIST-CNRS, Cote INIST : Y 32131, 35400007455778.0320

Nº notice refdoc (ud4) : 1819152



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