active sonar

active sonar

[′ak·tiv ′sō‚när]
(engineering)
A system consisting of one or more transducers to send and receive sound, equipment for the generation and detection of the electrical impulses to and from the transducer, and a display or recorder system for the observation of the received signals.
References in periodicals archive ?
The other notorious producer of acute AONP is active sonar from
The UUV must be outfitted with an active sonar system payload, which will include a small form factor active sonar projector, it said.
Tom Avsic, a hydro-acoustics engineer at ThyssenKrupp, spoke about how active sonar helps to detect submarines that give off less radiated acoustic noise.
FingerIO tracks fine-grained finger movements by turning a smartphone or smartwatch into an active sonar system using the device's own microphones and speakers.
Before the more in-depth analysis, we firstly show the active sonar echo detection system in the figure one.
When sonar was used in the second world war it was noted that fish and marine life could be killed by active sonar (active is generating sound and listening for its return as opposed to passive sonar which just listens for sound from, for example, submarines).
This is a portable, passive diver detection system that can be used independently as a complement to a Sentinel active sonar, enhancing the Sonardyne underwater surveillance proposal.
SPADES can be used standalone, or to augment a Sentinel active sonar, to provide an enhanced underwater surveillance solution.
As an acoustic warfare analyst, he operates, supervises and manages all passive and active sonar and acoustic sensors on board his submarine.
This also goes for the famous 'ping', the acoustic symbol of the submarine myth, a pulse of sound which active sonar emits listening for echoes.
The project aims to protect marine mammals against the impact of active sonar deployed by European navies.