Abstract
Good spatial resolution of a sound source can be achieved with the four closely spaced transducers in a vector sound-intensity probe. In contrast, a receiving array, generally requires an extensive distribution of transducer elements. Experimental results are presented that demonstrate the ability of a vector probe to determine the direction of a sound source in water, both without and with noise interference. Measurements of the sound-intensity vector, or sound-power flux, were performed using the cross-spectral relation. Spectral subtraction and averaging over the frequency range of a source, were found to be effective tools for determining the direction of the source when there is interference and background noise.
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