对信号进行小波变换，抑制系数小波滤波，采用了硬阈值滤波方法-right signal wavelet transform, wavelet filter coefficients inhibit use of the hard threshold filtering method

希尔伯特变换的应用，针对振动信号，使用希尔伯特变换进行了处理，希望对大家有帮助。-Application of Hilbert transform for vibration signal using the Hilbert transform to deal with, we hope to help.

运用EMd算法实现了信号的处理，并且对信号进行傅里叶变化获得其频域特征，冲采样后获得特征参数建立神经网络与实验进行识别- EMd use signal processing algorithm, and the Fourier transform of the signal in the frequency domain to obtain its characteristic red after sampling to obtain the characteristic parameter

快速傅里叶变换，用于数字信号处理，即经常说的FFt。-Fast Fourier transform for digital signal processing, that is often said FFt.