3D sound wave equation arbitrary-domain multi-scale full-waveform inversion method and 3D sound wave equation arbitrary-domain multi-scale full-waveform inversion device
A technology of full waveform inversion and acoustic wave equation, applied in measurement devices, instruments, scientific instruments, etc., can solve the problems of low efficiency of optimization method and low accuracy of forward algorithm, so as to maintain efficiency, improve accuracy, and have a wide range of applications. Effect
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[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0049] The working principle of this technical scheme is: this patent provides a method based on 4th order for the multi-scale full waveform inversion of 3D acoustic wave equation Symplectic algorithm for forward modeling of three-dimensional acoustic wave equations. This method uses the 10-order finite difference method for spatial discretization and the fourth-order method for time discretization. Symplectic algorithm. While improvin...
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