| 摘要: |
| 分析了基于信号处理的故障诊断的国内外研究现状，包括：非平稳非线性多分量信号分析、非高斯噪声和强背景噪声问题、微小渐变故障早期诊断与演化跟踪等三个方面。进而指出在当前该领域中存在的问题，并给出了一些今后值得研究的建议。 |
| 关键词: 故障诊断 经验小波变换 降噪 信号处理 |
| 基金项目:北京市自然科学基金（3173043） |
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| Current Situation and Existing Problems of Research on Fault Diagnosis Based on Signal Processing |
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Chen Zhixin1, Zhang Xiaopeng2, Zuo Miao2, Yang Ping2
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1. Beijing Wuzi University, Beijing 101149;2. China Academy of Space Technology, Beijing 100094
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| Abstract: |
| The research status of fault diagnosis based on signal processing is analyzed at home and abroad. It includes three aspects, such as non-stationary nonlinear multicomponent signal analysis, non Gauss noise and strong background noise, early diagnosis and evolution tracking of micro gradient fault. The existing problems in this field and suggestions for further research are also pointed out. |
| Key words: fault diagnosis empirical wavelet transform (EWT) de-noising signal processing |
