摘要
介绍了Norden.E.Huang等人提出的Hilbert-Huang变换(HHT)信号分析方法的主要内容、经验模态分解的过程和希尔伯特谱、边际谱的概念等;以虚拟仪器的开发特点及应用为基础,利用软件和硬件相结合的方法,从硬件部分、软件部分、仪器面板3个方面介绍了虚拟式Hilbert-Huang变换信号分析仪的设计,并成功开发了虚拟式Hilbert-Huang变换信号分析仪,为工程信号测试与分析提供了一种全新的方法。
Hilbert-Huang transform(HHT) is a new method for signal analysis developed by Norden. E. Huang et al in 1998. The concepts for main contents, Empirical mode decomposition, Hilbert spectrum and marginal spectrum of Hil- bert-Huang transform (HHT) are introduced. Based on the characteristics of VI' s development and application, combining software and hardware, the designed method, which includes hardware, software and panel for the Virtual Signal Analyzer Based on Hilbert-Huang Transform are introduced. Based on the HHT, combined with virtual instrument technology, a Virtual Signal Analyzer is developed successfully. It has provided a new method for signal test and analysis.
出处
《重庆大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2007年第6期1-5,共5页
Journal of Chongqing University
基金
国家自然科学基金资助项目(50405009)
教育部新世纪人才支持计划资助项目(NCET-04-0849)
重庆市科委自然科学基金资助项目(2006BB2242)
关键词
希尔伯特-黄变换
经验模态分解
虚拟仪器
信号分析仪
Hilbert-Huang transform (HHT)
empirical mode decomposition (EMD)
virtual instrument
signal analyzer