分频剩余静校正方法及应用效果分析

地震资料含有低、中、高频率成分，而对不同频率成分计算的剩余静校正量不同，针对这种情况，本文提出了分频剩余静校正方法以解决剩余时差问题，本方法是将资料进行小波变换分成不同频段的数据体，在不同频段的数据体内分别计算校正量，并进行校正，然后再进行小波重建合成，以达到分频校正的目的。本方法能够降低不同频率校正量误差的影响，尤其减少了高频成分的损失，对提高资料分辨率有较好的效果。

Method of frequency-divisional residual statics and its application analysis.

Seismic data contains low, medium and high frequency components and calculated residual statics are different for different frequency components. Aimed at the circumstances, the paper proposed the method of frequency-divisional residual statics to solve residual moveout. In order to reach the goal of frequency division correlation, the data can be decomposed into sub-data body in different frequency band by wavelet transform and statics can be calculated in sub-data body with different frequency, then the static correction can be done and wavelet re-building job can be carried out by composition. The method can reduce influence of errors existing in statics for different frequency, especially reduce the loss of high-frequency components, so that has a good result in improving data resolution.