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Explain Sonar ?
Answers
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Sonar (originally an acronym for sound navigation ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, communicate with or detect objects on or under the surface of the water, such as other vessels.
a system for the detection of objects under water and for measuring the water's depth by emitting sound pulses and detecting or measuring their return after being reflected.
"a weak sonar signal"
an apparatus used in a sonar system.
plural noun: sonars
"we reduced the sensitivity of our scanning sonars"
the method of echolocation used in air or water by animals such as bats or whales.
"the fishing nets are detectable by dolphin sonar"
Answer:
Sonar is simply making use of an echo. When an animal or machine makes a noise, it sends sound waves into the environment around it. Those waves bounce off nearby objects, and some of them reflect back to the object that made the noise
Active sonar involves the transmission and reception of sound waves. For example, when a submarine is used to map the topography of the ocean's floor, it sends out sound pulses, often referred to as pings, towards the bottom of the ocean within its vicinity.