双树复小波变换在川藏铁路拉林段某隧道超前地质预报中的应用

杨丹, 李伟, 魏永梁, 宋斌

Application of dual-tree complex wavelet transform in advanced geological prediction of the tunnel section in Lalin of Sichuan-Tibet Railway

YANG Dan, LI Wei, WEI Yong-Liang, SONG Bin

图5 第250道单道原始信号与双树复小波变换去噪信号对比

Fig.5 Comparison of original signal and dual-tree complex wavelet transform denoising signal of channel 250 data