摘要
为了分析非稳态、非线性信号,采用HHT、STFT、小波及小波包来提取信号的特征,较好地验证了HHT的有效性,研究发现,HHT是一种适合非线性、非稳态信号瞬时特征提取的良好方法。
In order to identify non-linear and non-stationary signal. Used the HHT,STFT,wavelet transform and wavelet packet transform to extract the parameters of signal, validating the efficiency of HHT very well. The investigation shows that HHT is an efficient method to analyse non-stationary and non-linear data in instant eigen-parameters extracted from signals.
出处
《山西建筑》
2005年第23期56-57,共2页
Shanxi Architecture
