A Cooperative Positioning Scheme Based on Extended Kalman Filter for Curve Warning Systems

Abstract:

Cooperative positioning (CP) is one of the core features in intelligent transportation systems (ITS) which is used to increase the positioning accuracy via wireless communication between vehicles and infrastructures. The global navigation satellite system (GNSS) is always unavailable near black spot such as the curve which needs to be solved. So, in this paper, a novel CP scheme is proposed for the curve warning scenario with limited GNSS by utilizing the information of received signal strength and pointer angular of the roadside unit which is in a special dual-transmitter outphasing architecture. An extended Kalman filter is founded to estimate the real-time position of the vehicle in the curve section. The whole warning scenario is analyzed by computer simulation, and the result shows the feasibility of the method.

• Periodical: Advanced Materials Research (Volumes 915-916)
• Pages: 1189-1193
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.915-916.1189
• Online since: April 2014
• Authors: Lei Du*, Nan Liu, Rui Fang, Xiang Hui Song
• Keywords: Cooperative Intelligent Transportation System, Cooperative Positioning, Extended Kalman Flter (EKF)

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