In order to extract features of hydraulic pump more effectively,a new approach based on MOFE combined with HE is proposed on the basement of MFE.Since there are inherent disadvantages for MFE,only averaging component in each scale is analyzed and other neglected ingredients should also be considered.By introducing of HE,MOFE make analysis of all nodes of time series in various scales.Furthermore,recognition ability for nodes in the same scale is compared and the one with optimun recognition is selected.Finally,fuzzy entropies of optimal nodes on all scale make up MOFE analysis for original time series.The proposed algorithm is verified by experimental data analysis and comparison.
舒思材,韩 东. 基于多尺度最优模糊熵的液压泵特征提取方法研究[J]. 振动与冲击, 2016, 35(9): 184-189.
SHU Si-cai,HAN Dong. Approach of Hydraulic Pump’s Feature Extraction Based on Multiscale Optimal Fuzzy Entropy. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(9): 184-189.
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