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Sound Surveillance System (SOSUS) was the original name for a submarine detection system based on passive sonar developed by the United States Navy to track Soviet submarines. The system's true nature was classified with the name and acronym SOSUS classified as well.
Both the equipment and process had specific and classified application to fixed surveillance sonar systems and was the basis for the United States Navy's ocean wide Sound Surveillance System (SOSUS) established in the early 1950s. The research and development of systems utilizing LOFAR was given the code name Project Jezebel.
Listening devices of the East German security services A microphone disguised as a power outlet plate. A covert listening device, more commonly known as a bug or a wire, is usually a combination of a miniature radio transmitter with a microphone.
The United States began a system of passive, fixed ocean surveillance systems in 1950 with the classified name Sound Surveillance System (SOSUS) with American Telephone and Telegraph Company (AT&T), with its Bell Laboratories research and Western Electric manufacturing entities being contracted for development and installation.
The device, embedded in a carved wooden plaque of the Great Seal of the United States, was used by the Soviet government to spy on the US. On August 4, 1945, several weeks before the end of World War II , a delegation from the Young Pioneer Organization of the Soviet Union presented the bugged carving to Ambassador Harriman, as a "gesture of ...
The Sound Surveillance System (SOSUS), its name and purpose classified, was given the unclassified name Project Caesar to cover its development and maintenance. [ 1 ] [ 2 ] In 1956, as the last of the Atlantic SOSUS systems were being installed, Chief of Naval Operations Admiral Arleigh Burke convened a summer study similar to the Hartwell ...
Passive acoustics is the action of listening for sounds, often at specific frequencies or for purposes of specific analyses. It is often used for passive acoustic monitoring (PAM), the act of recording animal and environmental sounds through the use of acoustic sensors for the purpose of tracking animals and answering other ecological questions.
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