Geoacoustic inversion of vertical line array data in shallow water with an ice cover

Авторы: Petnikov Valery G., Lunkov Andrey A., Grigoriev Valery A.
Сборник: 2021 Days on Diffraction (DD)
Глава в коллективной монографии
Год издания: 2021
Место издания: IEEE
Первая страница: 126
Последняя страница: 129
DOI: 10.1109/dd52349.2021.9598581
Аннотация: A technique for solving the inverse problem of esti- mating the eective acoustic parameters of the bot- tom is developed for shallow water with an ice cover. The initial data for the inversion are the experimen- tal sound eld amplitude at a vertical line array, and a set of precalculated dependences simulated for different eective bottom parameters. The range between a sound source and the array is an order of magnitude higher that the water depth. In the calculations, the bottom is considered as a liquid homogeneous medium with dierent values of the sound speed, density, and attenuation coecient. Numerical modelling is carried out within the framework of normal-mode theory. The obtained values of bottom parameters are considered eective if they provide a maximum agreement between experimental and simulated data. The technique has been tested in a field experiment on Lake Baikal with a solid ice cover.
Добавил в систему: Петников Валерий Георгиевич

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