FIELD: underwater acoustics, applicable in underwater vehicles for provision of navigation safety of their seafaring and surfacing, in particular.
SUBSTANCE: long-range detection, identification and determination of space coordinates of objects, as well as of the parameters of sea disturbance are accomplished according to the information contained in the acoustic high-frequency pumping waves radiated from the underwater vehicle and dispersed on the surface bubble layer, in the acoustic low-frequency waves formed in the process of motion of the objects, as well as in the high-frequency combination waves formed in a heterogeneous sea medium due to a non-linear interaction of the hydro-acoustic high-frequency pumping waves and the low-frequency acoustic waves.
EFFECT: enhanced range of action, enhanced reliability of identification of the detected objects, enhanced precision of determination of their space coordinates, provided determination of the parameters of sea disturbance.
7 dwg
