active sonar

collocation in English

meaningsofactiveandsonar

These words are often used together. Click on the links below to explore the meanings. Or,see other collocations withsonar.
active
adjective
uk
/ˈæk.tɪv/us
/ˈæk.tɪv/
busy with a ...
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sonar
noun[U]
uk
/ˈsəʊ.nɑːr/us
/ˈsoʊ.nɑːr/
equipment, especially on a ship, that uses sound waves to discover how deep the water is or the position of an object in the water, such as a group ...
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(Definition ofactiveandsonarfrom theCambridge English Dictionary© Cambridge University Press)

Examplesofactive sonar

These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
Will it be a fighting ship, or will it be a pseudo-ocean-going tug with a sophisticated towed array and with noactivesonar?
From the
Hansard archive
Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0
Low frequencyactivesonaris such an issue.
From the
Hansard archive
Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0
With regard to the platforms from which we might deploy low-frequencyactivesonar, it is too early to make any decision.
From the
Hansard archive
Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0
Beaked whales, the most common casualty of the strandings, have been shown to be highly sensitive to mid-frequencyactivesonar.
From
Wikipedia
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Once launched it operates autonomously, with tactical software searching for the target usingactivesonarand then homing in without any further assistance.
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Wikipedia
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Inactivesonar, the sonar system emits sound waves (acoustic energy) then listening and monitoring any existing echo (the reflected waves).
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If the target radiated noise level is high enough, it can have a greater range thanactivesonar, and allows the target to be identified.
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Wikipedia
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Activesonarcan also be used as a deterrent and/or disablement mechanism.
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Activesonarrelies on an audible ping to generate echoes to reveal objects around the submarine.
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Whenactivesonaris used by surface ships or submarines, it is typically activated very briefly at intermittent periods to minimize the risk of detection.
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Inactivesonarthere are two performance limitations, due to noise and reverberation.
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Fishermen also useactivesonarand echo sounder technology to determine water depth, bottom contour, and bottom composition.
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It is anactivesonarbase and has a $21 million simulated embassy for commando training.
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The ships also haveactivesonar, radiological detectors, laser detectors and detector for radar irradiate.
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A singleactivesonarcan localize in range and bearing as well as measuring radial speed.
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These exercises involve the use of mid-frequencyactivesonarto detect enemy submarines.
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It is conjectured thatactivesonartransmitters could confuse these animals and interfere with basic biological functions such as feeding and mating.
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Wikipedia
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Whenactivesonaris used to measure the distance from the transducer to the bottom, it is known as echo sounding.
From
Wikipedia
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Both of these techniques, when used in water, are known as sonar; passive sonar andactivesonarare both widely used.
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Wikipedia
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Once the torpedo's passive sonar has detected something, it will switch over to anactivesonarand will begin to track the target.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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See other collocations withsonar