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Ruigrok, E.N. (author), Gibbons, Steven (author), Wapenaar, C.P.A. (author)An areal distribution of sensors can be used for estimating the direction of incoming waves through beamforming. Beamforming may be implemented as a phase-shifting and stacking of data recorded on the different sensors (i.e., conventional beamforming). Alternatively, beamforming can be applied to cross-correlations between the waveforms on...journal article 2017