Passive Sonar

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A passive sonar array can determine both the range and bearing relative to an acoustic source. The time delay on arrival (TDOA) from each pair of hydrophones determines a hyperbola along which the source point lies. By finding the intersection point of all three hyperbolas, you can find the location of the source point.

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Drag the locator to position the sound source.

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Contributed by: Leo Singer (March 2011)
Open content licensed under CC BY-NC-SA


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