Time-Frequency Analysis Based on Local Wave Approach

摘要：

A new feature extraction method based on the local energy in joint time frequency analysis is presented. The concept of local energy in joint time- frequency analysis based on local wave theory is used to measure the signal energy in certain frequency and certain period. The proposed feature extraction method is tested on simulated signals. The result indicates that the developed approach is effective. 1

关键词： local wave local energy in joint time- frequency analysis feature extraction fault diagnosis

作者: WANG Fengtao MA Xiaojiang

作者单位: Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education School of mechanical engineering, Dalian University of Technology, Dalian, China, 116023

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）