标题：RETRACTED: Diesel Engine Air Tightness Feature Recognitionbased on Multi-scale Analysis (Retracted Article)
作者：Song, Xiaojie; Liu, Wei; Tan, Boxue
作者机构：[Song, Xiaojie; Liu, Wei; Tan, Boxue] Shandong Univ Tecnol, Sch Elect & Elect Engn, Zi Bo, Peoples R China.
会议名称：International Conference on Energy and Environmental Science (ICEES)
来源：2011 INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENTAL SCIENCE-ICEES 2011
关键词：Cylinder air tightness; starting voltage; mallat algorithm; feature; recognition
摘要：Cylinder air tightness is an important indicator to the comprehensive performance of internal combustion engine. It can be got the low-frequency and high-frequency signals of the starting voltage waveform using multi-scale analysis method and by binary discrete wavelet transform with the Mallat algorithm. The experiment results show that the working conditions of diesel engine starting process can be shown from the low-frequency signals, and the main frequency distribution can be recognised from the high frequency partial. This algorithm can effectively identify signal characteristics, and provide a reliable basis for signal feature recognition. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of the Organizers of 2011 International Conference on Energy and Environmental Science.