APPARATUS FOR DETECTING NARROW-BAND HYDROACOUSTIC NIOSE SIGNALS BASED ON CONTINUOUS WAVELET TRANSFORMATION Russian patent published in 2014 - IPC G01S3/08 

FIELD: radio engineering, communication.

SUBSTANCE: apparatus for detecting narrow-band hydroacoustic noise signals based on continuous wavelet transformation includes an analogue-to-digital converter, the input of which is the input of the apparatus, and the output is connected to the input of a recirculator, a threshold device whose output is the output of the apparatus, and the input is connected to the output of a unit for averaging squared moduli, an adder whose output is connected to the input of the unit for averaging squared moduli and the input of random-access memory, the output of which is connected to the second input of the adder, the first input of which is connected to the output of a multiplier, the first input of which is connected to the output of the recirculator, and the second input is connected to the output of read-only memory, wherein control inputs of the analogue-to-digital converter, the recirculator, the threshold device, the unit for averaging squared moduli, the read-only memory, the multiplier, the adder and the random-access memory are connected to outputs of the control device.

EFFECT: low hardware costs for making the apparatus for detecting narrow-band hydroacoustic noise signals based on continuous wavelet transformation.

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