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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 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.
Sonar 2076 is a submarine sonar detection system designed by Thales for the Royal Navy. The system comprises an integrated suite of active and passive sonar systems including bow, fin, flank and towed arrays. [1] Known components include: Type 2077 Parian obstacle avoidance sonar; Type 2081 environmental monitor; Type 2094 oceanographic sonar
The CAPTAS-4 is a towed array sonar developed by Thales Underwater Systems to equip first-rank surface combatants.Manufactured in Brest, France, it represents the high-end and most powerful system of the company's CAPTAS (Combined Active and Passive Towed Array Sonar) line of products [1] and equips several first-rank warships of the French Navy as well as those of various export customers.
The name changed to Integrated Undersea Surveillance System (IUSS) in 1985, as the fixed bottom arrays were supplemented by the mobile Surveillance Towed Array Sensor System (SURTASS) and other new systems. The commands and personnel were covered by the "oceanographic" term until 1991 when the mission was declassified.
The Sonar 2087 (sometimes shortened to S2087) is a towed array sonar developed by Thales Underwater Systems (TUS). Manufactured in the United Kingdom, it is the British variant of the company's CAPTAS-4 manufactured in Brest, France, and part of its CAPTAS (Combined Active and Passive Towed Array Sonar) line of products. [1]
These are called towed arrays (linear) or variable depth sonars (VDS) with 2/3D arrays. A problem is that the winches required to deploy/recover them are large and expensive. VDS sets are primarily active in operation, while towed arrays are passive. An example of a modern active-passive ship towed sonar is Sonar 2087 made by Thales Underwater ...
The AN/SQS-35 could function under 3 primary modes, with 'search' and 'attack' (active) and 'listen' (passive) modes available to it. The sonar system utilized 3 target displays, two PPIs and a classification recorder, and provided ships mounted with the towed array with the capability to search the 13 kHz high-frequency band at variable depths, including below the layer or depths of up to 180 ...