Incorporating Rate of Turn (ROT) and Change of Speed (COS) into AIS-based predictions for more accurate results during maneuvers.
💡 While the basic CPA method provides a "point-in-time" safety check, modern ocean navigation requires combining CPA with Ship Domain models to ensure reliable collision avoidance in busy shipping lanes. If you'd like, I can provide: The specific mathematical formulas for DCPA and TCPA A summary of COLREG rules related to collision avoidance Ocean CPA method.pdf
): The vector difference between the own ship’s velocity and the target's velocity. Incorporating Rate of Turn (ROT) and Change of
Provides GPS-based data including SOG (Speed Over Ground) and COG (Course Over Ground). 4. Calculation Methodology Ocean CPA method.pdf
Modern "Ocean CPA" calculations typically integrate data from two primary systems: