What is the role of AIS data in ARPA tracking?

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What is the role of AIS data in ARPA tracking?

AIS data enhances ARPA tracking by providing identity and precise motion information that the radar alone can’t always confirm. Since AIS broadcasts include the vessel’s identity (MMSI and name) along with position, course, and speed, you can match a radar target to an AIS target, confirming who it is and using the AIS-provided speed over ground and course over ground to refine or validate the radar track. When radar measurements are degraded, cluttered, or the vessel is out of optimal range, AIS data can fill gaps and help maintain a continuous, more accurate track by supplying reliable kinematic data. AIS does not replace radar, does not deliver weather data, and does not document cargo manifests.

AIS data enhances ARPA tracking by providing identity and precise motion information that the radar alone can’t always confirm. Since AIS broadcasts include the vessel’s identity (MMSI and name) along with position, course, and speed, you can match a radar target to an AIS target, confirming who it is and using the AIS-provided speed over ground and course over ground to refine or validate the radar track. When radar measurements are degraded, cluttered, or the vessel is out of optimal range, AIS data can fill gaps and help maintain a continuous, more accurate track by supplying reliable kinematic data. AIS does not replace radar, does not deliver weather data, and does not document cargo manifests.

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