): The vector difference between the own ship’s velocity and the target's velocity.
Uses radio waves to track the relative bearing and range of nearby targets. Ocean CPA method.pdf
Modern "Ocean CPA" calculations typically integrate data from two primary systems: ): The vector difference between the own ship’s
Incorporating Rate of Turn (ROT) and Change of Speed (COS) into AIS-based predictions for more accurate results during maneuvers. Ocean CPA method.pdf