Volume 26 Issue 3
Mar.  2011
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SHI Yong-sheng, JIANG Ying, SONG Yun-xue. Aero-engine health monitoring method based on joint entropy of symbolic series[J]. Journal of Aerospace Power, 2011, 26(3): 670-674.
Citation: SHI Yong-sheng, JIANG Ying, SONG Yun-xue. Aero-engine health monitoring method based on joint entropy of symbolic series[J]. Journal of Aerospace Power, 2011, 26(3): 670-674.

Aero-engine health monitoring method based on joint entropy of symbolic series

  • Received Date: 2010-02-07
  • Rev Recd Date: 2010-04-01
  • Publish Date: 2011-03-28
  • Information entropy theory was introduced into this paper for aero-engine health monitoring in combination with symbolized multiple parameters time series.The joint entropy of symbolic series,which depicts the disorder degree of aero-engine performance parameters,was used to analyze aero-engine health condition and evolutive trend.Experiments of two data sets were done,and the results show that the method described in the healthy evolution of aero-engine coincides with the actual situation.The method can reflect the health condition and also can be applied in aero-engine health monitoring.

     

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