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介绍了基于提升方法的第二代小波原理以及自适应冗余第二代小波的构造方法。将自适应冗余第二代小波和冗余第二代小波变换应用于提升机振动信号的去噪分析并进行比较。试验表明,相对于冗余第二代小波,自适应冗余第二代小波在信号去噪方面具有更好的特性。
The second generation wavelet principle based on lifting method and the construction method of adaptive redundant second generation wavelet are introduced. The adaptive redundant second generation wavelet and redundant second generation wavelet transform are applied to the de-noising analysis of hoist vibration signal and compared. Experiments show that, compared with redundant second-generation wavelet, adaptive redundant second-generation wavelet has better performance in signal denoising.