FIELD: physics.
SUBSTANCE: disclosed is a method of reducing the structural component of interference in the signal of a hydroacoustic receiver, rigidly mounted on an antenna chassis, having a three-component accelerometer rigidly mounted on the chassis. Receiver and accelerometer signals undergo Fourier transformation. Further, at each i-th step, a spectrum of the output signal of the hydroacoustic antenna is formed with a compensated vibration component using the formula: ξi=yi-k,zi, where ξi is the i-th spectral reading of the compensated spectrum of the operating frequency range of the hydroacoustic sensor, and yi is the spectral reading of the spectrum of the output signal of the hydroacoustic receiver. Compensation is performed according to two schemes: based on the signal from one accelerometer output, characterised by the highest signal power, and based on signals from all accelerometer outputs.
EFFECT: reduced effect of vibrations of the chassis of the carrier on output signals of hydroacoustic receivers and fewer requirements for vibration insulation.
3 cl, 2 dwg
