一种集成经验模态分解的样本熵阈值微地震信号降噪方法

王亚娟, 李怀良, 庹先国, 沈统

A denoising method for microseismic signal based on the ensemble empirical mode decomposition of sample entropy threshold

Ya-Juan WANG, Huai-Liang LI, Xian-Guo TUO, Tong SHEN

图5 实测微地震监测数据去噪效果对比 a—文中方法去噪效果;b—小波多尺度分析去噪效果;c—带通滤波方法;d—低通滤波方法

Fig.5 Comparison of denoising effect of actual microseismic data a—the result of the method in this paper;b—the result of wavelet multi scale analysis;c—the result of ban-dpass filter;d—the result of low-dpass filter