METHOD OF PROCESSING SONAR INFORMATION Russian patent published in 2018 - IPC G01S15/00 

FIELD: hydro acoustics.

SUBSTANCE: invention relates to the field of hydroacoustics and can be used in the design and development of systems of active sonar systems in the detection and classification of objects. Method for processing the sonar information comprises signal emission, receiving a reflected echo signal, forming a fan of static directivity characteristics, each of which has a width Δβ⁰, digital multichannel processing, formation of a classification bank, display of information and management, formation of an array of successive temporal realizations for the entire time of emission-reception across all spatial channels, determination of correlation coefficients CC between successive temporal realizations of neighboring spatial channels, determination of neighboring spatial channels with correlation coefficient CC>0.5, measurement of the amplitudes of echoes in adjacent spatial channels with a correlation coefficient CC>0.5, determination of the course angle, determination of the angular extent of the object with respect to the number of adjacent channels with CC>0.5, determination of the maximum amplitude A_max summary temporary realization, definition of time extent, definition of T_Amax temporary position A_max with respect to the radiation time, the determination of the distance D = 0.5 S_sound T_Amax, where S_sound – speed of sound, data transfer to the classification bank.

EFFECT: automatic detection of echoes from objects of artificial origin in the presence of bottom and surface reverberations.

1 cl, 1 dwg