Based upon the model established here, a square prediction error is used to detect that the sensor fault for SPE (Principle component analysis) is sensitive to the sensor fault.

在所建立模型的基础上，根据平方预报误差(SPE)对传感器故障敏感的特点利用其进行传感器的故障检测。

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Steve Fussy, from the AWE, said the false alarm, which was triggered by a "sensor fault", was not meant to alert residents.

BBC: Atomic weapons base false alarm wakes neighbours