MULTIFREQUENCY SONAR SIDE VIEWER Russian patent published in 2019 - IPC G01S15/02 

FIELD: physics.

SUBSTANCE: invention relates to hydroacoustic engineering and can be used in designing hydroacoustic systems. Multifrequency sonar of side view comprises a display unit, a control unit, an n-input adder, a series-connected radio pulse generator, a switch and a multi-element transceiving interference antenna, is characterized in that the antenna aperture is in the form of a cylindrical surface convex in the ejection direction of a cylindrical surface with a radius of curvature R, in which the generator l is located in the azimuthal plane and along the length by an order more, than chord size α, tightening extreme symmetrical relative to acoustic axis point of arc of length L.

EFFECT: invention extends the operational capabilities of the side vision sonar by reducing the dead zone and enlarging the length of the surveyed strip of the bottom surface in the echo search direction by using a nonlinear effect of self-action of sound waves.

3 cl, 3 dwg