振动信号处理的时频域方法

Methods of Time-frequency Processing for Vibration Signal

针对振动信号处理,采用窗函数法设计有限冲激响应(Finite Impulse Rseponse,简称FIR)数字滤波器,并基于快速傅里叶变换(Fast Fouier Transorm,简称FFT)算法来说明振动信号的基本处理方法—时频域处理方法,并用MATLAB进行仿真,结果表明,所提出的设计及算法简洁,易于实现,其可行性强.

Aimed at vibration signal processing, the paper explains the basic methods of vibration signal process （time-frequency processing of vibration signal）by using the medium of designs finite impulse response （FIR） digital filter with the window function and based on Fast Fouier Transform（FFF） arithmetic, and simulates with MATLAB software.