【摘要】 故障诊断包括信号采集、信号分析、特征提取、诊断决策等环节。每一环节对最终的诊断结果均有着重要影响。详细讨论了通过恰当的信号分析方法与手段来提高诊断结果的准确性和可靠性 ,提出了噪声压缩、信息集成与融合、信息分解、特征趋势等几种提高诊断质量的有效途径。更多还原

【Abstract】 Fault diagnosis includes data collection, signal analysis, feature extraction and decision making. Each of them is important to make the diagnostic decision. This paper discusses how to improve diagnostic quality and reliability through appropriate signal analysis methods. Some effective ways are proposed to improve diagnostic quality,such as noise suppression, information integration and fusion, information decomposition and feature trending. Examples reveal their effectiveness.更多还原