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A GPS Pseudorange Based Cooperative Vehicular Distance Measurement Technique

Author(s)
Yang, Daiqin; Zhao, Fang; Liu, Kai; Lim, Hock Beng; Frazzoli, Emilio; Rus, Daniela L.; ... Show more Show less
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Abstract
Accurate vehicular localization is important for various cooperative vehicle safety (CVS) applications such as collision avoidance, turning assistant, etc. In this paper, we propose a cooperative vehicular distance measurement technique based on the sharing of GPS pseudorange measurements and a weighted least squares method. The classic double difference pseudorange solution, which was originally designed for high-end survey level GPS systems, is adapted to low-end navigation level GPS receivers for its wide availability in ground vehicles. The Carrier to Noise Ratio (CNR) of raw pseudorange measurements are taken into account for noise mitigation. We present a Dedicated Short Range Communications (DSRC) based mechanism to implement the exchange of pseudorange information among neighboring vehicles. As demonstrated in field tests, our proposed technique increases the accuracy of the distance measurement significantly compared with the distance obtained from the GPS fixes.
Description
Author's final manuscript July 11, 2012
Date issued
2012-05
URI
http://hdl.handle.net/1721.1/81480
Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics; Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Journal
Proceedings of the 2012 IEEE 75th Vehicular Technology Conference (VTC Spring)
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Yang, Daiqin, Fang Zhao, Kai Liu, Hock Beng Lim, Emilio Frazzoli, and Daniela Rus. “A GPS Pseudorange Based Cooperative Vehicular Distance Measurement Technique.” In 2012 IEEE 75th Vehicular Technology Conference (VTC Spring), 1-5. Institute of Electrical and Electronics Engineers, 2012.
Version: Author's final manuscript
ISBN
978-1-4673-0990-5
978-1-4673-0989-9
978-1-4673-0988-2

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