FIELD: hydroacoustics.
SUBSTANCE: invention relates to the field of hydroacoustics and can be used in the tasks of object classification in the development of hydroacoustic systems. In the proposed method, when detecting and classifying a marine object, the influence of the frequencies of discrete components detected in the frequency band selected for the allocation of the amplitude envelope is eliminated.
EFFECT: providing reliable determination of spectral classification features based on shaft-blade modulation and oscillatory modulation signals of noise emission of marine objects.
1 cl, 1 dwg
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