
Dual- parameter shaping regularized full waveform inversion in frequency domain
SUN Ruixue,HAN Liguo and SUN Eryan
Global Geology ›› 2015, Vol. 18 ›› Issue (4) : 258.
Dual- parameter shaping regularized full waveform inversion in frequency domain
The regularization contributes to the resolution and stability in geophysical inversion. The authors ap- ply dual- parameter shaping regularization to full waveform inversion,aiming at two points: (1) improving the boundary resolution,and (2) increasing convergence. Firstly,the forward modeling is done,and the inversion is processed with the optimal solution. Compared with classical Tikhonov regularization scheme,the method re- flects better resolution and stronger convergence. Then, Marmousi model is experimented and inversed, and the deep structure has a sharper outline. The phase residual comparison illustrates weaker cycle- slipping. And a choice scheme of parameter is applied in FWI.
dual- parameter / regularization / FWI / frequency- domain / phase- error
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