ROVs usually use a ultrashort baseline acoustic positioning system [1] paired with the surface vessel. [1] https://en.wikipedia.org/wiki/Ultra-short_baseline_a

ROVs usually use a ultrashort baseline acoustic positioning system [1] paired with the surface vessel. [1] https://en.wikipedia.org/wiki/Ultra-short_baseline_acoustic_positioning_system https://en.wikipedia.org/wiki/Ultra-short_baseline_acoustic_...