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Submarine detection systems are an aspect of antisubmarine warfare. They are of particular importance in nuclear deterrence , as they directly undermine one of the three arms of the nuclear triad by making counter-force attacks on submarines possible.
Submarine navigation underwater requires special skills and technologies not needed by surface ships. The challenges of underwater navigation have become more important as submarines spend more time underwater, travelling greater distances and at higher speed.
The DUBV 43C towed array sonar of La Motte-Picquet.. A towed array sonar is a system of hydrophones towed behind a submarine or a surface ship on a cable. [1] Trailing the hydrophones behind the vessel, on a cable that can be kilometers long, keeps the array's sensors away from the ship's own noise sources, greatly improving its signal-to-noise ratio, and hence the effectiveness of detecting ...
The use of active sonar by a submarine to determine bearing is extremely rare and will not necessarily give high quality bearing or range information to the submarines fire control team. However, use of active sonar on surface ships is very common and is used by submarines when the tactical situation dictates that it is more important to ...
The opposite occurred when the surveillance community did not have information on U.S. submarine operations, and assumed they held a Soviet or unknown contact. In 1962 and 1973, U.S. submarines conducting covert operations off of the Soviet submarine base at Petropavlovsk were detected by NAVFAC Adak. In 1962, the detections were published at ...
The AN/UQQ-2 Surveillance Towed Array Sensor System (SURTASS), colloquially referred to as the ship's "Tail", is a towed array sonar system of the United States Navy. SURTASS Twin-Line consists of either the long passive SURTASS array or the Twin-line array, consisting of two shorter passive arrays towed side by side.
A photonics mast aboard a Virginia-class submarine. A photonics mast (or optronics mast [1]) is a sensor on a submarine which functions similarly to a periscope without requiring a periscope tube, thus freeing design space during construction and limiting risks of water leakage in the event of damage.
For example, one study showed that a horizontal detection range of 450–800 m, when aircraft was 200 m above a submarine, decreased to less than 150 m when the aircraft was 400 m above the submarine. [8] If the sea floor has sunken ships, then submarines may operate near them to confuse magnetic anomaly detectors. [9]