改进阈值的TI小波去噪法在MT去噪中的应用
The application of translation invariant wavelet de-noising method with a modified threshold to denoising in magnetotelluric sounding
a—原始信号;b—噪声信号;c—含噪信号;d—软阈值法去噪后结果;e—硬阈值法去噪后结果;f—原始TI去噪法去噪后结果;g—笔者改进阈值的TI去噪法去噪后的结果
改进阈值的TI小波去噪法在MT去噪中的应用 |
| 曹小玲, 严良俊, 陈清礼 |
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The application of translation invariant wavelet de-noising method with a modified threshold to denoising in magnetotelluric sounding |
| Xiao-Ling CAO, Liang-Jun YAN, Qing-Li CHEN |
| 图1 4种方法在Leleccum信号下信噪比为5 dB时去噪效果对比 a—原始信号;b—噪声信号;c—含噪信号;d—软阈值法去噪后结果;e—硬阈值法去噪后结果;f—原始TI去噪法去噪后结果;g—笔者改进阈值的TI去噪法去噪后的结果 |
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