根据伺服机构的位置控制精度要求，导出了压差故障门限的估算公式，其结论便于工程应用。
According to the requirment of the position preasion. The fault detection threshold was derived the-orily. This design method can be easily applied to practical engineering.
本文提出一种基于多门限特征提取的轨道故障检测算法。
A rail deformation detection algorithm based on multi-threshold feature extraction was presented in this paper.
在残差决策阶段，采用模糊自适应门限的判决方法，提高了故障检测的鲁棒性。
At the stage of residual decision, an adaptive fuzzy threshold method is used to enhance the robustness of fault detection.
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