Inverse Scattering Analysis Of Elastic Half Space
By Means Of The Fast Volume Integral Equation
Method
Author(s)
T. Touhei & T. Hinago
Abstract
A method for the inverse scattering analysis for an elastic half space is developed
in this article. The method is based on the fast volume integral equation developed
by the author, in that the Krylov subspace is constituted by a fast method without
deriving the coefficient matrix for the integral equation. The equation for the
inverse scattering analysis obtained from the volume integral equation is for
reconstructing fluctuations of the medium from observed scattered waves of the
finite region at the free surface. The linearization for the equation is carried out by
the Born approximation. The Tikhonov regularization method is also employed to
have the iterative solution converge. Several numerical calculations are performed
to verify the accuracy of the reconstruction of the wave field as well as the effects
of the regularization method.
Keywords: inverse scattering problem, elastic half space, fast method, volume
integral equation, Tikhonov regularization method.
Keywords
inverse scattering problem, elastic half space, fast method, volume
integral equation, Tikhonov regularization method
Related Book
Other papers in this volume
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