Multivariate statistical analysis has been considered as an important method of fault diagnosis due to its independence of process model and the availability of mass data in industrial process.

• 基于多元统计分析的故障诊断方法是故障诊断领域的一个重要研究分支，由于该方法不依赖于数学模型，计算所需的大量生产过程数据易于在工业现场获取，因而具有重要的理论价值和广泛的应用价值。