Extension of Traditional Frequency and Research on Time-Frequency Distribution

摘要：

　　The concept of traditional frequency is extended and the concept of local frequency is proposed,which makes the physical meaning of frequency clearer.The wide adaptability of local frequency is also discussed.Moreover,a novel time-frequency analysis method is presented based on local frequency.The time-frequency distribution of continuous triangular wave signal is analyzed by the novel approach.Compared with wavelet transform and Hilbert-Huang transform (HHT),the results show that the concept of local frequency is correct and the novel time-frequency approach is effective.

关键词： Local frequency Time-frequency distribution Hilbert-Huang transform Wavelet transform

作者: Shulin Liu Xianming Wang Hui Wang Haifeng Zhao

作者单位: lnsititute of Mechatronics Engineering and Automation, Shanghai University, Shanghai, 200072,China Insititute of Mechanical Engineering, Northeast Petroleum University, Daqing, 163318, China Storage Transportation and Sales Sub-company, Daqing Oilfield Corp.Ltd., Daqing, 163453,China

会议类型: 国际会议

会议名称: the 2010 International Conference on Frontiers of Manufacturing and Design Science(第一届制造与设计科学国际会议(ICFMD 2010))

会议地点: 重庆

会议语种:英文

页码: 2089-2093

在线出版日期: 2010-12-11（万方平台首次上网日期，不代表论文的发表时间）