Thread: [SCRIPT] Using the N900 as Sonar
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sulu is offline sulu
2014-07-14 , 14:00
Posts: 915 | Thanked: 3,209 times | Joined on Jan 2011 @ Germany
#19
Originally Posted by Estel View Post
Interesting, gotta check the accuracy. I wonder if it would more effectively underwater, for obvious reasons (after altering calculations, of course)?
As a rough estimate, the maximum range should increase by factor 9 due to the better sound propagation quality of water compared to air, but the accuracy will drop by about factor 4.3 due to the higher speed of sound (and therefore smaller delay).

The details depend on signal frequency as well as medium temperature and pressure.
I assumed something in the range of 1-2kHz, 25°C and sea level.
 

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