Application of Feature Vector Extraction Based on Local Wave Approach to Recognition of Coal-rock Interface
Zhongqing Wang · Colliery Mechanical & Electrical Technology · 2009
The local wave decomposition is an approach based on the local feature.It's especially fit for analyzing nonlinear and unsteady signal,it is enabled to decompose the complex vibration signal into a series of intrinsic modes(IMF) effectively and describe the local feature of signal in the frequency-time plan.We tried to use this approach for analyzing the cutting condition of shearer.