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提出了一种利用对特定传感器故障敏感的最优奇偶向量进行故障检测与隔离的方法。主要思想是设计一个性能指标函数，使得最优奇偶向量对被检测的传感器故障最敏感，而对其余传感器故障和未知输入不敏感。与常用的广义似然比方法相比，该方法明显地提高了故障的检测能力，此外，对故障的隔离效果也更好。
A method of fault detection and isolation using the optimal parity vectors that are sensitive to specific sensor faults is proposed. The main idea is to design a performance index function such that the optimal parity vector is the most sensitive to the detected sensor failure and insensitive to the remaining sensor failures and unknown inputs. Compared with the commonly used generalized likelihood ratio method, this method obviously improves the detection ability of the fault. In addition, the fault isolation is also better.