标题：Application of Wavelet Packet Energy Spectrum in Coal-rock Interface Recognition
作者：Baoping Wang;Zengcai Wang;Yunxia Li;
作者机构：[Baoping Wang;Zengcai Wang;Yunxia Li]School of Mechanical Engineering, Shandong University
来源：Proceedings of 2011 International Conference on Advanced Materials and Computer Science(ICAMCS 2011 Part2)
关键词：top coal caving;coal-rock interface recognition;wavelet packet;energy spectrum
摘要：The recognition of coal-rock interface in the top caving was investigated via the vibration signals of the tail beam of the hydraulic support. Wavelet packet transform was used to process the vibration signals. A newly feature based on wavelet packet energy spectrum was proposed to identify the coal...