FIELD: the invention refers to technical hydraulic acoustics.
SUBSTANCE: it may be used for reception and space processing of signals on low sound and infrasonic frequencies. In the mode of directional reception of hydraulic acoustic signals after execution of temporary delays of electric signals transformed out of acoustic vibrations, convert them in mutual energetic spectrums G1.i(fn), actual component (N-1) is picked up of mutual spectrums S1.i(fn) in n frequency points with predetermined permission Δf and are summed up according to each of frequencies fn according to the formula 
EFFECT: increases direction of reception and noise immunity.
8 dwg
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