Abstract
A method is proposed for imaging of scattering heterogeneities in continuous media on the basis of numerical modeling of forward and backward wave propagation. It is shown that the combination of a solution for backward propagation of waves and direct wave propagation allows us to visualize scattering heterogeneities. The results of numerical simulation are presented.
Highlights
Acoustic tomography is widely used in flaw detection
Most of the existing methods of ultrasonic tomography use the locational principle of sounding [1, 2], in which objects are visualized by back scattered waves
We propose a method for solving the inverse problem of acoustic tomography based on numerical simulation of the propagation of acoustic waves in solids
Summary
It is necessary to solve the inverse problem – determine its shape and characteristics of object by means of the measured signal scattered by heterogeneity. Most of the existing methods of ultrasonic tomography use the locational principle of sounding [1, 2], in which objects are visualized by back scattered waves. There are particular cases of sounding schemes where rapid processing of signals and obtaining of three-dimensional images is possible, for example, the Stolt method.
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