PRR
Similar Terms: pulse, pulse frequency, PRF
Pulse Repetition Rate - or Pulse Repetition Frequency (PRF) - refers to the number of pulses of a repeating sonar signal, usually measured in pulses per second.
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Signals are transmitted via speed of sound in the water, with maximum PRR depending on the size of the object you're looking at.
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For example, the speed of sound in water is 1,497Â m/s. The ocean is approximately 2Â km deep, so sound takes over a second to return from the sea floor. Sonar has a low PRR for this reason.
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