【摘要】 地震信号去噪处理是地震勘探所要解决的一项主要任务,提高地震信号信噪比也相应显得尤为重要。提出由Heur-sure选取阈值和软阈值函数对测试信号、合成地震信号及实际地震数据进行二次小波分解分层量化处理,与常规小波阈值去噪相比,对含有高频分量的信号,该方法具有很好的去噪效果。更多还原

【Abstract】 De-noising of seismic data is a main task of geophysical exploration,improving thesignal-to-noise radio is turning to more and more important accordingly.The threshold is selected by Heursure method and soft threshold function,launches process of second-decomposition on wavelet layer quantification to test signal,synthetic seismic signals and practical seismic data.Compared with conventional wavelet threshold de-noising,this method has more advantage on de-noising to the signal containing high frequency components.更多还原