Method and Apparatus for Direction Finding of Marine Digital Sound Receptor using Phase Different

摘要

A method and an apparatus for detecting a direction of a marine digital acoustic receiver using a phase difference are disclosed. The apparatus for detecting a direction of a marine digital sound receiving apparatus using a phase difference proposed in the present invention includes a plurality of microphones for receiving an acoustic signal of an analog signal and a plurality of microphones for converting the acoustic signal input from the plurality of microphones into a digital signal An analog-to-digital converter, a serial-to-parallel converter for converting an acoustic signal of the converted digital signal into a parallel signal, a Fourier transformer for Fourier transforming the acoustic signal converted into the parallel signal, A band-pass filter for removing a signal, a magnitude and phase extractor for extracting a phase by calculating a magnitude and a phase response from an acoustic signal band-passed through the band-pass filter, A direction judging unit for judging the direction, And a validator for checking the.