剩余静校正的小波包预处理方法

强反射层追踪与相对时差拾取中的“多值”现象严重影响剩余静校正的效果，为此提出的小波包预处理方法，可以实现地震道噪声与信号及不同强反射层的分离，从而能自动识别并提取“纯”的强反射层，提高强反射层追踪的可靠性和相对时差的拾取精度．

Wavelet Packet Preprocessing of Residual Static Correction

The residual static correction plays a very important role in seismic data processing. Toobtain reasonable results,it is necessary to trace the correct reflection zones and to pick ac-curate time shifts between traces. A commonly used method is the correlation method.If the signal-to-noise ratio is relatively low, it is often necessary to choose one more reasonable re-sult from two completely different ones.A wrong choice may seriously distort the seismicprofile. This is the so-called multiple value problem. Wavelet Packet is a new method of sig-nal processing, It can split a signal into many pieces,with different infomation carried bydifferent pieces. The pure signal may be stored in some special pieces,If this is true,a puresignal can be extracted just by picking out these special pieces. A preprocessing method forseismic data is developed based on the said ideas. Numerical experiments show that the mul-tiple value problem is well solved.