Sequential RF Fingerprinting for AIS: Rejecting Unknown Vessels and Insider MMSI Spoofs Days After Enrollment
The system uses sequential RF fingerprinting to identify vessels by analyzing physical layer signals. It rejects unknown vessels after ten days and detects insider MMSI spoofs with high accuracy by comparing incoming signals against enrolled vessel fingerprints. This method relies on accumulating evidence over time and dynamically adjusting detection thresholds to handle signal drift.