4 ms·
Sonar sends out sound and then listens for the echoes though, rather than just take in sound from other sources.
by FreeFull 10y ago
Sonar sends out sound and then listens for the echoes though, rather than just take in sound from other sources.
- votingprawn 10y agoSome types of SONAR send out sound, other types (e.g. [0]) passively listen for sounds and use beamforming to localise the source of the noise. [0] https://en.wikipedia.org/wiki/Towed_array_sonar https://en.wikipedia.org/wiki/Towed_array_sonar