摘要
时频分析在非平稳信号处理中占有重要的位置,它的主要任务是表述信号的频率成分随时间变化的规律。本文在时频分析的基础上,重点研究了一种新的高精度时频分析方法-希尔伯特黄变换(HHT),并将改进HHT算法与典型时频分析方法(短时傅立叶变换、WD)进行比较,阐述了HHT的应用及优点。
Time-Frequency （TF） analysis is very important in signal processing .The main mission of TF analysis is to describe the variety of the frequency followed time. Based on TF Analysis, there is a new high-precision TF analysis-HHT and between these TF analysis there is a comparison. Additionally, in this paper, apply the HHT method in practice because of its advantage.
出处
《仪器仪表用户》
2007年第5期8-10,共3页
Instrumentation
