Wavelet ridge extraction based on improved Carazy Climber algorithm
For the problems of time-consuming and low efficiency of extracting multiple wavelet ridges u-sing the traditional Crazy Climber algorithm,an improved Crazy Climber algorithm in simulating normali-zing cooling was proposed.The continuous wavelet transform is applied to the response of the structural vibration.In the time-frequency plane composed of the wavelet coefficients amplitudes,the wavelet ridge points are tracked by the simulating normalizing cooling algorithm to make each random point gather on the ridge line,eliminating the operation time.Through the numerical simulation of single-degree of free-dom and multi-degree of freedom system,the computational efficiency and recognition accuracy of the pro-posed algorithm are compared with that of the traditional Crazy Climber algorithm,and the advantages of the proposed algorithm are demonstrated.
万方数据
维普
