剩余动校正量的拾取与消除

为了克服剩余动校正量对降低地率的影响，本文在叠加记录上利用禹前向后预测建立模型道，按最大相似系数准则示诹剩余动校正量，然后采用Ｂｕｔｅｒｗｏｒｔｈ滤波器进行滤波插值一完成高精度动态拉伸校正，从而消除剩余校正的影响，保持了地震记录的原有分辩率，并使叠另过程中产生的噪声得到衰减。理论模型试算与实际应用表明，该方法的处理效果良好。

Pickup and removal of residual normal moveout

To remove the bad influence of residual normal moveout upon seismic data res-olution, we put forward a method which takes the following steps: Derive the model trace from stacked seismic traces by doing forward and backward predictions. Estimate residual normal moveout according to the maximum similarity coef-ficients criterion. Eliminate dynamic correction stretch by making filtering interpolation with the use of Butterworth filter, so that we remove the bad influence of residual nor-mal moveout, recover the original resolution of seismic data,and attenuate the nois-es which have resulted from stacking processing. Teoretical and real results show that the method brings satisfactory effect.