Application of wavelet transform-based signal singularity detection in horizon identification
Liu Wei1,2, Cao Si-yuan1,2
1. State Key Lab of Oil Resources and Prospecting, China University of Petroleum, Beijing City, 102249, China;
2. CNPC Key Lab of Geophysics, China University of Petroleum, Beijing City, 102249, China
Abstract：The wavelet transform not only has localization property in both time domain and frequency domain,but also by using it the signal singularity analysis can be conducted.Through singularity analysis the location of the singular point need to be determined,and the suitable wavelet function and scale also need to be chosen to accurately describe the singular point.Regarding to the characteristics of the impedance data the concept of the impedance basis function was presented in this paper,and the impedance basis function which is more suitable for impedance analysis was estimated.The simulation results show that the impedance basis function reflected the discontinuity of the impedance in depth very well,so the horizon information of the impedance were easily estimated.
刘伟, 曹思远. 基于小波变换的信号奇异性检测在层位识别中的应用[J]. 石油地球物理勘探, 2010, 45(4): 530-533.
Liu Wei, Cao Si-yuan. Application of wavelet transform-based signal singularity detection in horizon identification. OGP, 2010, 45(4): 530-533.
