期刊
IEEE TRANSACTIONS ON SIGNAL PROCESSING
卷 66, 期 24, 页码 6474-6487出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TSP.2018.2875887
关键词
Maritime surveillance; long term prediction of vessel motion; Ornstein-Uhlenbeck process; maritime anomaly detection; statistical hypothesis test; target tracking; automatic identification system; radar; real-world data
资金
- NATO Allied Command Transformation via the project Data Knowledge Operational Effectiveness at the NATO Science and Technology Organization Centre for Maritime Research and Experimentation
- NATO Allied Command Transformation via the project Data Knowledge Operational Effectiveness
A novel anomaly detection procedure based on the Ornstein-Uhlenbeck (OU) mean-reverting stochastic process is presented. The considered anomaly is a vessel that deviates from a planned route, changing its nominal velocity vo. In order to hide this behavior, the vessel switches off its automatic identification system (AIS) device for a time T and then tries to revert to the previous nominal velocity v(0) . The decision that has to be made is declaring that a deviation either happened or not, relying only upon two consecutive AIS contacts. Furthermore, the extension to the scenario in which multiple contacts (e.g., radar) are available during the time period T is also considered. A proper statistical hypothesis testing procedure that builds on the changes in the OU process long-term velocity parameter v o of the vessel is the core of the proposed approach and enables the solution of the anomaly detection problem. Closed analytical forms are provided for the detection and false alarm probabilities of the hypothesis test.
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