FIELD: physics.
SUBSTANCE: method of forming and use of the spatial development of luminal parametric antenna in the marine environment includes the formation of luminal receiving parametric antenna as a multi-commensurate with the spatial extent controlled the marine environment, this is done using non-directional radiating transducers, which are located in the center of the water area and place them on the axis of the underwater sound channel, above and below it, three receiving units are formed of three non-directional acoustic transducers each located in a vertical plane triangle, and the depth a similar emitting transducers at the vertices of triangles is directed towards the emitter, while nonlinearly transformed luminal signals multichannel taking single transducer three receiver units and by means of submarine cables via the switching unit, and the channel switching signal analysis applied to the input multi-channel and multi-function of the receiving path, wherein the measured characteristics of the luminal signals every receiving unit, determine the direction of their arrival in the vertical plane of the controlled sector for this receiving unit luminal signals are amplified in the frequency of parametric conversion, measured correlation functions of signals between the middle and the extreme transducers and then measure their cross-correlation function, the characteristic maxima which determine the direction of arrival information signals "top and bottom", then on the basis of an algorithm for solving " reverse radiation problem "forming the structure transmissive acoustic field determines the point of intersection of the rays in the directions of the observed sectors, each receiving unit as the location of marine radiation sources of information waves further in the signals cross-correlation function with the output of each line analysis measured narrowband spectrum, which in view of parametric changes in the environment, and the time-frequency conversion in the receive path, determine the frequency of the measured waves of information and their affiliation (identification) weather, sea or bottom.
EFFECT: technical result is to increase the sensitivity and range of parametric receiving waves of different physical nature.
4 cl, 15 dwg
