以FJ44型发动机为研究对象，选择采集该型发动机的几个关键性能参数，对数据平滑处理后进行趋势分析，监控发动机状态，并为其故障诊断提供参考。%In this paper F J44 engine is taken as the research object, and some key performance parameters are sampled and smoothed. The engine＇s trend has been analyzed and provided as references for the engine＇s fault diagnosis.
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