FIELD: physics.
SUBSTANCE: method involves receiving an acoustic signal during "electric" rotation of the beam pattern of components x and y of a composite receiver consisting of a vector receiver and a hydrophone. The received signal undergoes analogue-to-digital conversion via Hilbert or Fourier transform with subsequent conversion of the signal into analytical form. Further, the ratio of the imaginary part of the signal to the real part is calculated and that ratio is used to estimate the phase difference between acoustic pressure p(t) and orthogonal components of particle velocity 
The bearing of the noisy object is identified by a phase difference jump of 180°.
EFFECT: wider operating frequency range of the method.
1 dwg
