【摘要】 根据小波变换下信号和噪声在多尺度空间中的不同特性,对不同尺度下的小波系数用阈值处理,改进了多次小波变换应用于地震信号去噪的方法。数据仿真和实际应用表明,该方法可以有效压制随机噪声,对提高地震记录信噪比和分辨率都有较好的效果。更多还原

【Abstract】 Based on the different feature between signal and noise on the multi-measure domain in wavelet transform, processing the wavelet coefficients in the different measures with thresholds filter, multi-wavelet transform can remove the noise without losing the original signals. The method provided is proved to be effective in improving the signal to noise ratio and enhancing the resolution of seismic data by data simulation and practical seismic data processing.更多还原