Patent ID: 6958950
Filing Date: 2005-10-25
Classification: G03H

Abstract:
1. A method of visualizing sound fields of individual sound sources using acoustic holography, comprising the steps of: a) calculating sound pressures on a sound source plane using sound pressures measured on a hologram plane; b) extracting a reference sound source locating at a position where a sound pressure has the largest value on the total sound field, and determining the sound pressure at the position as a signal coherent to the reference sound source; c) obtaining a sound field of the reference sound source using the signal coherent to the reference sound source; d) eliminating the sound field of the reference sound source from the total sound field to get a remaining sound field, and determining whether any remaining sound field exists; and e) if any remaining sound field exists at step d), applying the step b) to the step d) to the remaining sound field.