The time remaining until the ships reach that minimum distance. 3. Data Inputs
The minimum distance (usually in nautical miles) between the vessels at the moment of closest approach. Ocean CPA method.pdf
Recent research, such as that found on ScienceDirect and ResearchGate , suggests improving basic CPA by: The time remaining until the ships reach that
💡 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 Recent research, such as that found on ScienceDirect
The perpendicular distance from the own ship to the target's relative motion line. 5. Advanced Refinements
Uses radio waves to track the relative bearing and range of nearby targets.
Calculated by dividing the relative distance projection by the relative speed.
