NUMERICAL STUDY OF THE SELECTION ALGORITHM OF THE REFERENCE VELOCITY DISTRIBUTION IN KINEMATIC SEISMOTOMOGRAPHY
O. N. Belousova1, S. M. Zerkal2
1Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, pr. Akademika Koptyuga 1, Novosibirsk, 630090 Russia
2Novosibirsk State University of Architecture and Civil Engineering, ul. Leningradskaya 113, Novosibirsk, 630008 Russia
Keywords: computed tomography, inverse kinematic problem, refracted waves, residual functional, Newton’s method, refractive index
Abstract
An important initial step in seismic tomography studies that use the kinematic characteristics of elastic waves is the optimal choice of the reference velocity distribution which corresponds to the principal known component of the velocity function in linearization. A numerical analysis of the determination of the reference velocity distribution parameters depending on the properties of the system of observations used is given.
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