METHOD FOR DETERMINING OBJECT IMMERSION DEPTH Russian patent published in 2018 - IPC G01S15/58 

FIELD: sonar.

SUBSTANCE: present invention relates to the field of sonar and is aimed at improving the efficiency of determining the main parameters of the detected target. Method containing the radiation of the probe signal, the reception of the echo from the object, the distance D to the object, the measurement of the direction to the target in the vertical plane, the determination of the depth of immersion according to the formula H=D Sin (α), where D is the measured distance to the target, α – the angle between the direction of movement of the carrier and the direction to the target, in the vertical plane, the depth of immersion of the active sonar H_as, radiate a probing signal, receive an echo with a vertical linear antenna, receive an echo with a horizontal linear antenna, determine the interference and the choice of the threshold for the first cycle of receiving the input information of all the directional characteristics, determine a common channel with a correlation coefficient greater than 0.5 and along it determine the angular position of the target vertically and horizontally AC_v, distance D_max and the depth of immersion of target H_imm with respect to the depth of immersion of the active sonar H_imm=H_as+D_max SinAC_v.

EFFECT: use of joint processing of the received echo along vertical and horizontal channels will automatically determine the depth of immersion of the target for one radiation cycle reception against a background of surface and bottom reverberation and not only for fixed objects.

1 cl, 1 dwg