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高频地震反射波法能有效地进行隧道掌子面前方地质预报。为提高信号的信噪比 ,在傅立叶变换的基础上 ,引进小波变换理论 ,在实践中取得了较好的地质效果
High frequency seismic reflection wave method can effectively carry out the geological prediction in front of tunnel face. In order to improve signal-to-noise ratio of signal, on the basis of Fourier transform, the introduction of wavelet transform theory, achieved good geological effect in practice