In this paper,the first arrival wave time field of imaging area is obtained by solving the Eikonal equation by using wavefront expansion extrapolation method.The full plane migration imaging of prestack data of complex model is performed by using Kirchhoff integral migration technique.The imaging results show that the inversion method of curve ray tomography describes the anomaly velocity body more accurately than straight ray tomography result.Better migration imaging results can be obtained by using the velocity field inverted by curved ray tomography.
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