GNSS Multipath-Resistant Cooperative Navigation in Urban Vehicular Networks

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Multipath delays and signal outages in urban environments have been the most difficult problems in Global Navigation Satellite System (GNSS)-based cooperative vehicular navigation systems. In this paper, we develop a non-line-of-sight (NLOS) GNSS signal detection algorithm and propose a multipath-resistant hybrid sum-product algorithm over a wireless network (MRH-SPAWN) and multipath-resistant hybrid cooperative extended Kalman filter (MR-hcEKF) techniques that significantly enhance multipath robustness in urban environments, compared with H-SPAWN and hcEKF, respectively. We provide theoretical derivation and realization of the proposed techniques and demonstrate the performance with numerous Monte Carlo simulations using field measurements of multipath delays. The proposed techniques significantly improve the positioning accuracy of all vehicles and outperform the conventional cooperative positioning (CP) technique in urban multipath environments.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2015-12
Language
English
Article Type
Article
Keywords

LOCALIZATION; MITIGATION; ALGORITHM; SYSTEM; CODE

Citation

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v.64, no.12, pp.5450 - 5463

ISSN
0018-9545
DOI
10.1109/TVT.2015.2481509
URI
http://hdl.handle.net/10203/207800
Appears in Collection
GT-Journal Papers(저널논문)
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