NOISE DETECTION DEVICE hydroacoustic signals based on quadrature RECEIVER

摘要

Detection unit noise hydroacoustic signals on quadrature receiver basis, comprising: an analog-digital converter, the input of which is fed the input signal and an output connected to the input of the recirculator, whose output is connected to inputs of M narrow-band filter, characterized in that the outputs of the M narrow-band filters connected the first inputs of the M pairs of multipliers, whose outputs are connected to inputs of M pairs of integrators, whose outputs are connected to inputs of M pairs quad, the outputs of which are pairwise connected to Rin M rows of adders, whose outputs are connected to inputs of M square root calculators whose outputs are connected to inputs of M delay units, outputs of which are connected to M inputs of the adder, whose output is connected to the input of the threshold device, whose output is the output of the apparatus; 8M outputs a read only memory connected to the second inputs of the multipliers M pairs; Outputs of the control device are connected to control inputs of analog-to-digital converter, a recirculator, a permanent storage device and a threshold device.