This paper verified the effectiveness of the fault diagnosis method based on 2d-hmm for centrifugal pump, by applying several signal feature extraction methods combining 2d-hmm model.
在应用本文所采用的几种信号特征提取方法的基础上，结合2d - HMM模型，验证了基于2d - H MM的离心泵故障诊断方法的有效性。
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