Automatic de-noising and recognition algorithm for drilling fluid pulse signal

HU Yongjian,HUANG Yanfu,LI Xianyi

Table 3 Parameter tuning.

Stage Parameter Tuned value Frame- synchro- nization Wavelet basis function Discrete Meyer Wavelet decomposition level of baseline drift rectification 10 Wavelet decomposition level of signal 8 Relative rising-edge protruding degree threshold 70% Relative falling-edge protruding degree threshold 70% Instruc- tion Wavelet basis function Discrete Meyer Wavelet decomposition level of baseline drift rectification 10 Wavelet decomposition level of signal 6 Relative rising-edge protruding degree threshold 50% Relative falling-edge protruding degree threshold