Which targets can ARPA track?

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Multiple Choice

Which targets can ARPA track?

ARPA is designed to automatically acquire, select, and track moving targets that appear on the radar, using their changing range and bearing to predict future position and provide collision avoidance information. This makes moving targets the primary focus because the tracking system relies on motion data to compute course, speed, and the closest point of approach. Underwater mines aren’t seen by radar, so ARPA has nothing to track there. Static buoys also don’t provide the kind of relative motion that ARPA tracking needs to forecast future positions, so they aren’t tracked in the same way as moving targets. Aircraft are generally handled by different radar modes or systems; ARPA’s standard function is optimized for surface targets, not air targets. Therefore, vessels and other moving targets are what ARPA tracks, making that choice the best fit.

ARPA is designed to automatically acquire, select, and track moving targets that appear on the radar, using their changing range and bearing to predict future position and provide collision avoidance information. This makes moving targets the primary focus because the tracking system relies on motion data to compute course, speed, and the closest point of approach.

Underwater mines aren’t seen by radar, so ARPA has nothing to track there. Static buoys also don’t provide the kind of relative motion that ARPA tracking needs to forecast future positions, so they aren’t tracked in the same way as moving targets. Aircraft are generally handled by different radar modes or systems; ARPA’s standard function is optimized for surface targets, not air targets. Therefore, vessels and other moving targets are what ARPA tracks, making that choice the best fit.

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