Based on the idea of wavelet transform,this paper puts forward a new technique for denoising log curve.First,wavelet decomposition of log curve is carried out in accordance with Mallat tower algorithm,then a nonlinear soft threshold is used to restrain and leach noise in the wavelet field,and finally the reconstructed log curve is obtained through wavelet reverse transform.The result shows that the technique is more effective than the traditional filtering method.
邹长春, 杨欣德, 潘令枝, 朱继永, 李彦华. 一种基于小波变换的测井曲线去噪新方法[J]. 物探与化探, 1999, 23(6): 462-466.
Zou Changchun, Yang Xinde, Pan Lingzhi, Zhu Jiyong, Li Yanhua. A NEW TECHNIQUE FOR DENOISING LOG CURVE ON THE BASIS OF WAVELET TRANSFORM. Geophysical and Geochemical Exploration, 1999, 23(6): 462-466.