摘要
采用小波分析方法 ,对压缩机噪声信号进行分解重构 ,利用小波算法多分辨率特性在重构信号中去除低频干扰成分的影响 ,利用重构信号进行噪声主要频率成分分析 ,提取噪声信号的主要频率成分。通过对剩余信号的分析 。
The method of wavelet analysis was used in decomposition and reconstruction of noise signals, that could delete the low frequency of the signal accurately. Based on the reconstructed signal, the main frequency of the compressor noise could be extracted, and the interferential frequency was obtained from the residual signal.
关键词
小波分析
压缩机
噪声
信号处理
Wavelet Analysis
Compressor
Noise
Signal Processing
