Write in detail about SONAR.
Answers
Answer:
Sonar, (from “sound navigation ranging”), technique for detecting and determining the distance and direction of underwater objects by acoustic means. Sound waves emitted by or reflected from the object are detected by sonar apparatus and analyzed for the information they contain.
Answer:
Sonar (sound navigation and 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.
Techniques- The simplest sonar devices send out a sound pulse from a transducer, and then precisely measure the time it takes for the sound pulses to be reflected back to the transducer.
Frequency - Common working frequencies for side-scan sonar are in the range 100 kHz–1 MHz.
Categories - There are two types of sonar—active and passive.
Hope you got your answer
Thank you