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Information Technology Journal

Year: 2013 | Volume: 12 | Issue: 22 | Page No.: 6849-6851
DOI: 10.3923/itj.2013.6849.6851
Accuracy Analysis of Automatic Identification System Position Estimation
Yi Jiang, Shufang Zhang and Dongkai Yang

Abstract: Time of Arrival (TOA) and Time Difference of Arrival (TDOA) techniques can be used in automatic identification system (AIS) providing ship position information. Which technique should be selected is decided by its positioning accuracy. This study presents accuracy analysis of different positioning techniques used in AIS, including TOA, TDOA and TOA without time synchronization. Position accuracy is derived and analyzed based on positioning models from a Line of Position (LOP) point of view. According to these analysis results it is hard to say TOA or TDOA has the higher accuracy which is depends on the distribution of the base stations. The accuracy of TDOA is always higher than TOA without time synchronization. The simulation results verify the above conclusions.

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How to cite this article
Yi Jiang, Shufang Zhang and Dongkai Yang, 2013. Accuracy Analysis of Automatic Identification System Position Estimation. Information Technology Journal, 12: 6849-6851.

Keywords: Automatic identification system, positioning accuracy, time of arrival, time difference of arrival, time synchronization and line of position

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