Figure 11.

PCA-based GLR charts (IDV 11).


#### Table 5.

Summary of fault detection results (IDV 11).

T<sup>2</sup> and Q charts. The improved results can be attributed to the use of MLEs to estimate the values of the unknown parameters used to maximize the GLR statistic, allowing for the best possible DR to be achieved for a fixed FAR. This example also demonstrates that the GLR charts can be easily designed and utilized to monitor chemical processes, such as the TEP.
