A cooperative positioning algorithm for DSRC enabled vehicular networks

• Autorzy: Efatmaneshnik M. , Kealy A. , Alam N. , Dempster A.
• Języki publikacji: EN

Abstrakty

EN

Many of the safety related applications that can be facilitated by Dedicated Short Range Communications (DSRC), such as vehicle proximity warnings, automated braking (e.g. at level crossings), speed advisories, pedestrian alerts etc., rely on a robust vehicle positioning capability such as that provided by a Global Navigation Satellite System (GNSS). Vehicles in remote areas, entering tunnels, high rise areas or any high multipath/ weak signal environment will challenge the integrity of GNSS position solutions, and ultimately the safety application it underpins. To address this challenge, this paper presents an innovative application of Cooperative Positioning techniques within vehicular networks. CP refers to any method of integrating measurements from different positioning systems and sensors in order to improve the overall quality (accuracy and reliability) of the final position solution. This paper investigates the potential of the DSRC infrastructure itself to provide an intervehicular ranging signal that can be used as a measurement within the CP algorithm. In this paper, time-based techniques of ranging are introduced and bandwidth requirements are investigated and presented. The robustness of the CP algorithm to inter-vehicle connection failure as well as GNSS dropouts is also demonstrated using simulation studies. Finally, the performance of the Constrained Kalman Filter used to integrate GNSS measurements with DSRC derived range estimates within a typical VANET is described and evaluated.

Słowa kluczowe

EN

DSRC; Vanet; cooperative positioning; ranging; time of arrival; CRLB; Kalman filtering; robust positioning

PL

DSRC; Vanet; pozycjonowanie; godzina przyjazdu; CRLB; filtracja Kalmana

• Wydawca: Zarząd Główny Stowarzyszenia Geodetów Polskich
• Czasopismo: Archiwum Fotogrametrii, Kartografii i Teledetekcji
• Rocznik: 2011
• Tom: Vol. 22
• Strony: 117--129
• Opis fizyczny: Bibliogr. 12 poz.

Twórcy

autor

Efatmaneshnik M.

• Department of Infrastructure Engineering, University of Melbourne, 3010, Australia

autor

Kealy A.

• Department of Infrastructure Engineering, University of Melbourne, 3010, Australia

autor

Alam N.

• School of Surveying and Spatial Information Systems, University of New South Wales, 2052, Australia

autor

Dempster A.

• School of Surveying and Spatial Information Systems, University of New South Wales, 2052, Australia

Bibliografia

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• 5. CAMP-Vehicle-Safety-Communications-Consortium. 2005. Vehicle Safety Communications Project Task 3 Final Report, Identify Intelligent Vehicle Safety Applications Enabled by DSRC: U.S. Depatment of Transporation, National Highway Traffic Safety Administration.
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