METHOD FOR PARAMETRIC RECEPTION OF WAVES OF DIFFERENT PHYSICAL NATURE IN MARINE ENVIRONMENT Russian patent published in 2012 - IPC G10K11/00 G01S15/02 

FIELD: physics.

SUBSTANCE: disclosed is a method for parametric reception of waves of different physical nature in a marine environment, involving generation of elastic pumping waves with measured information signals the medium of the operating zone of nonlinear interaction and parametric transformation. In the disclosed method, transmitting and receiving antennae of the measuring system are placed on opposite boundaries of the monitored area of the marine environment. A zone of nonlinear interaction and parametric transformation of elastic pumping waves with measured information signals is formed in between. Pumping waves are received by at least two omnidirectional receivers spatially spaced apart in the horizontal plane and then amplified in a band from zero to the sum frequency of pumping waves and information signals. Through subsequent analysis, parametric components of the sum or difference frequency is selected, from which, based on the parametric and frequency-time conversion of the pumping waves, the initial characteristics of the measured information signals are restored.

EFFECT: wider probing spatial geometry by facilitating long and super long-distance reception of signals.

3 cl, 6 dwg