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Volume 32 Issue 11
Dec.  2010
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Zhao Tai-Yang, Guo Cheng-An, Jin Ming-Lu. A RFID Based Traffic Information Acquisition System and Vehicle Positioning Method[J]. Journal of Electronics & Information Technology, 2010, 32(11): 2612-2617. doi: 10.3724/SP.J.1146.2009.01530
Citation: Zhao Tai-Yang, Guo Cheng-An, Jin Ming-Lu. A RFID Based Traffic Information Acquisition System and Vehicle Positioning Method[J]. Journal of Electronics & Information Technology, 2010, 32(11): 2612-2617. doi: 10.3724/SP.J.1146.2009.01530

A RFID Based Traffic Information Acquisition System and Vehicle Positioning Method

doi: 10.3724/SP.J.1146.2009.01530
  • Received Date: 2009-12-01
  • Rev Recd Date: 2010-04-14
  • Publish Date: 2010-11-19
  • Vehicle positioning method is a hot research topic for many years. In this paper, an ITS (Intelligent Transportation System) based on RFID is proposed, including the structure and communication protocol. A novel vehicle positioning method, based on the Time Difference of Arrival (TDOA) is proposed. This vehicle positioning method is a two-step robust positioning method. The rough position of a vehicle can be estimated by a robust estimation in the first step. Then the three base stations which are closest to the vehicle can be found, and the two TDOA of these three base stations are employed to calculate the vehicles final position. Simulation results show that the performance of the proposed algorithm is better than the classic Chan algorithm and 2-step algorithm based on averaging method. The performance of the proposed algorithm can meet the requirement of positioning service in ITS.
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