Reconstruction methods for acoustic particle detection in the deep sea using clusters of hydrophones

Understand

This article focuses on techniques for acoustic noise reduction, signal filters and source reconstruction.

• For noise reduction, bandpass filters and cross correlations are found to be efficient and fast ways to improve the signal to noise ratio and identify a possible neutrino-induced acoustic signal.
• The reconstruction of the position of an acoustic point source in the sea is performed by using small-volume clusters of hydrophones (about 1 cubic meter) for direction reconstruction by a beamforming algorithm.
• The directional information from a number of such clusters allows for position reconstruction.