ship-tended acoustic relay

ship-tended acoustic relay

[′ship ¦ten·dəd ə′küs·tik ′rē‚lā]
(navigation)
An acoustic navigation system that employs ocean bottom transponders and determines the distance of the ship from these transponders by measuring the time required for a signal broadcast by an acoustic transducer below the hull of the ship to travel to the transponder, be rebroadcast there, and travel back to the ship. Abbreviated STAR.
Mentioned in ?