基于最小带宽离散小波的故障信号消噪与压缩.rar-based on the discrete wavelet minimum bandwidth of the fault signal denoising and compression. Rar

用小波的方法对带噪音的信号进行去噪处理并显示其图像-wavelet with the method of noise signal denoising and display their images

集合经验模态分解主要用于信号分解与降噪，为后期信号特征提取提供理论基础-The set of EMD is mainly used for signal decomposition and denoising, which provides a theoretical basis for signal feature extraction.