FIELD: hydroacoustic signaling devices.
SUBSTANCE: invention can be used to detect a moving underwater marine object. Technical result: increasing the noise immunity when detecting a moving underwater marine object by suppressing pulsed hydroacoustic interference. To achieve the specified technical result, the interference detector of a moving underwater marine object additionally contains median filters. Median filters are introduced into the frequency tuning channel, the first, second and Nth receiving channels of the signal processing unit, while the inputs of the filters are connected to the outputs of the corresponding receiving antenna devices, and the outputs are connected to the inputs of the corresponding filter blocks.
EFFECT: increasing the noise immunity when detecting a moving underwater marine object by suppressing pulsed hydroacoustic interference.
1 cl, 3 dwg
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