Towed array sonar

When not deployed, an Akula's towed array is stored in a teardrop shaped container mounted on top of the vertical fin

A towed array sonar is a system of hydrophones towed behind a submarine or a surface ship on a cable. Trailing the hydrophones behind the vessel, on a cable that can be kilometers long, which keeps the array's sensors away from own-ship's noise sources, greatly improving its signal-to-noise ratio, and hence the effectiveness of detecting and tracking faint contacts, such as quiet, low noise-emitting submarine threats, or seismic signals.

单词	Acoustic array
释义	Acoustic array 英语百科 Towed array sonar A towed array sonar is a system of hydrophones towed behind a submarine or a surface ship on a cable. Trailing the hydrophones behind the vessel, on a cable that can be kilometers long, which keeps the array's sensors away from own-ship's noise sources, greatly improving its signal-to-noise ratio, and hence the effectiveness of detecting and tracking faint contacts, such as quiet, low noise-emitting submarine threats, or seismic signals.
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Acoustic array

Towed array sonar