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A comment on Debris field found in search for missing submersible. Parent comment

Re:Debris field found in search for missing submersible by agumonkey on Thursday June 22, 2023 @03:53PM (#36437824)
dumb question, are there positioning system for sea exploration ? I assume GPS dies off quickly but maybe something else ?
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Re:Debris field found in search for missing submersible by saberdancer on Thursday June 22, 2023 @04:13PM (#36438200)
They have inertial navigation system.
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Re:Debris field found in search for missing submersible by civilitty on Thursday June 22, 2023 @04:47PM (#36438730)
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_...

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