Karst region seismic wave reverse-time migration imaging optimization method

Abstract

The present application relates to a kind of karst region seismic wave reverse time migration imaging optimization method, comprising: by the preset seismic wave acquisition device, from the specific micro fissure dense area of karst region, obtain initial seismic wave signal data, using time-frequency domain conversion technique to the signal data preliminary denoising processing, for the high-frequency interference part in signal is inhibited, obtain preliminary filtered wave field distribution information;By inversion path simulation technique, extract wave propagation trajectory data from multi-level feature map, for the dynamic adjustment of fissure boundary response value, if the deviation of trajectory data and initial seismic wave signal data is lower than the preset threshold, then determine the path parameters of accurate simulation;Obtain the boundary delineation data in the distribution diagram of optimized underground structure, using precision quantification analysis technique to the boundary definition index and imaging resolution level are evaluated, if boundary noise suppression ratio and delineation data integrity both satisfy the preset standard, then determine clear structure imaging result.

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