用反射波旅行时对层状介质进行成像的新方法

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根据地震波的射线理论,给出了利用反射波旅行时对层状介质进行成像的新方法。在局部范围内可将地层各界面视作为平面,求取界面、速度诸参数,整个创面的成像只需反复在局部范围内求解。数值试验表明:本方法具有较高精度和收敛速度快等特点,适用于横向变化小、界面起伏比较平缓的地质剖面成像。 According to the ray theory of seismic waves, a new method of imaging layered media using reflected waves is given. In the local area, the strata can be regarded as the plane of each interface, and the interface and velocity parameters can be obtained. The entire wound imaging can be solved only in the local area repeatedly. Numerical experiments show that the proposed method is of high accuracy and fast convergence and is suitable for imaging of geological sections with small lateral variation and relatively gentle interface fluctuation.
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