FIELD: fishing and fish farming; acoustics.
SUBSTANCE: determination of size composition of fishes includes measurement of forces and angles of their location relative to vertical axis of any two central parts of hydroacoustic device acoustic antenna beam, selecting size of fish length intervals in linear scale in range covering all dimensions of fish, fish target forces sorting out at intervals of target forces corresponding to selected linear dimensional intervals. At that, determination of size compositions fishes is performed in multiview clusters simultaneously for each type of fish by treating fish target forces simultaneously in several databases in accordance with target force dependence on equations of length of fish for each type and by fish target for each size class, wherein number of arrays is equal to number of fish species in accumulation. At that, introduction of dimensional ranges from Lmin to Lmax for each type and used minimum TSmin and maximum TSmax values of force for each type corresponding to minimum Lmin and maximum Lmax length size range according to target force dependence on equations of length for each type.
EFFECT: high accuracy, efficiency and reduced costs associated with determination of size composition of fishes.
1 cl, 5 dwg
