摘要
希尔伯特-黄变换(Hilbert-Huang Transform,简称HHT)是上世纪末出现的一种处理非线性非平稳信号的新方法 ,EMD边界处理是其中的关键技术之一。着重介绍了一种基于本征波匹配的EMD边界处理方法——本证波匹配预测法,特别是介绍了将该方法和其他两种有代表性的EMD边界处理方法应用于仿真信号和和实测信号的算例对比,从而验证了本证波匹配预测法的先进性。该工作使得相关研究得到较大程度地深化和完善。
Hilbert-Huang transformation （HHT） has been a new method for processing non-linear and non-stationary signals since the end of the 20th century. Meanwhile, boundary processing is one of its key technologies. A method for EMD boundary processing based on intrinsic wave matching called intrinsic wave matching prediction method was proposed here. Especially, the comparison between two representative EMD boundary processing methods and the proposed method was introduced in processing simulated signals and tested signals. The effectiveness of the proposed method was validated.
出处
《振动与冲击》
EI
CSCD
北大核心
2012年第1期16-19,共4页
Journal of Vibration and Shock
基金
国家自然科学基金资助项目(50275154)
重庆交通大学研究生教育创新基金资助项目(0913)
关键词
HHT
EMD边界处理
本证波
本证波匹配预测法
HHT
EMD boundary processing
intrinsic wave
intrinsic wave matching prediction method
