Methods and systems for consistency checking and anomaly detection in automatic identification system signal data
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United States of America Patent
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Apr 21, 2015
Grant Date -
Oct 17, 2013
app pub date -
Apr 12, 2012
filing date -
Apr 12, 2012
priority date (Note) -
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Abstract
Methods and systems for validating positions reported in AIS message signals by fitting suitably chosen functions to signal characteristic data, such as timing and Doppler shift data, derived from a plurality of AIS message signals. Ships whose reported positions deviate from the fitted function may be flagged as suspect.
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