A Method for Identifying Frequency of Vibration Systems Based on Band-Pass Filtering Characteristic of Morlet Wavelet
B Zhang, Jianjun Li · Journal of Air Force Engineering University · 2005
Using band-pass filtering characteristic of Morlet wavelet in frequency area,a method for identifying frequency of vibration systems directly on scalograms by changing frequency bandwidth of Morlet wavelet is studied.The advantages of this method are simple and easy in use.The circumstances in accordance to existing serious noise in real test data and identifying closely mode of vibration systems are simulated.The results of simulation show that the method is feasible and effective.