FIELD: acoustics.
SUBSTANCE: area of application: the invention relates to the field of hydroacoustic equipment and can be used for conducting a survey of the surface of the bottom and/or the lower ice edge in real time even at zero velocity of the carrier whereon the equipment implementing the claimed method is installed. Substance: the method is implemented by forming an emission period with a step and repeat overview of the space sector depending on the angular position of the emitting directivity characteristic in the overview sector.
EFFECT: increase in the speed of surface relied survey without an increase in the mass and dimensional characteristics of the apparatus implementing the claimed method.
1 cl, 2 dwg
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