METHOD FOR PROCESSING SONAR INFORMATION Russian patent published in 2019 - IPC G01S15/00 

FIELD: hydroacoustics.

SUBSTANCE: invention relates to hydroacoustics and can be used in designing and developing active sonar systems for various purposes. Method for processing sonar information comprises emitting a signal, receiving a reflected echo signal with a fan of static directional characteristics, with formation of spatial channels, digital multichannel processing, display of an array of successive temporal realizations in a luminance mode over the propagation time in all spatial channels, for each detected echo, a spatial channel with a maximum echo signal amplitude is determined, determining distance D from time position of maximum amplitude, determining angular position Q₁ spatial characteristic, in which an echo signal is detected relative to the sonar motion direction, distance R₁ is determined to point of intersection with direction of movement of sonar R₁=D₁/cosQ₁, emitting second probing signal, measuring distance D₂ and angular position Q₂ by spatial characteristic, to which second probing signal is received, distance R is determined₂ to intersection point R₂=D₂/cosQ₂, own speed V_own is measured and distance d, traveled during time between first and second transmissions q=V(T₂-T₁), where T₂ and T₁ radiation times of the second and first probing signals, and a decision is made that reflection from the wire or cable is detected if R₂=R₁-V(T₂-T₁), and the meeting time T_meet=T₂+R₂\V_own.

EFFECT: method is proposed for processing of sonar information.

1 cl, 1 dwg