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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.
Submerged submarines may produce a Kelvin wake pattern depending on their speed and depth. Kelvins wakes are difficult to detect for submarines below the depth of 100m, however, submarines below 100m may still generate "internal wakes" that may be detectable from the surface. [40] Laser detection and ranging of surfaced vessels; airborne and ...
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.
On the submarine force side, there was a recurrent idea that SOSUS/IUSS could not detect U.S. submarines, despite early SOSUS having tracked USS George Washington across the Atlantic. The realization that SOSUS could detect U.S. nuclear submarines led to the Navy's quieting program for those submarines and the assumption returned. [15]
Communication with submarines is a field within military communications that presents technical challenges and requires specialized technology. Because radio waves do not travel well through good electrical conductors like salt water, submerged submarines are cut off from radio communication with their command authorities at ordinary radio frequencies.
A magnetic anomaly detector (MAD) is an instrument used to detect minute variations in the Earth's magnetic field. [1] The term typically refers to magnetometers used by military forces to detect submarines (a mass of ferromagnetic material creates a detectable disturbance in the magnetic field).
Autolycus or Sniffer [1] was a submarine detection system designed to detect diesel-engined submarines from aircraft. [2] It was designed to detect exhaust fumes from their diesel engines . [ 3 ] Named after the mythical Greek, Autolycus , who took part in the search for the Golden Fleece , it was developed by the British during the early Cold ...
Surface ships usually used ASDIC to detect submerged submarines. However, to deliver its depth charges a ship had to pass over the contact to drop them over the stern; sonar contact would be lost just before attack, rendering the hunter blind at the crucial moment. This gave a skilful submarine commander an opportunity to take evasive action.