e one in row 3, column 1.
This is a known shortcoming of Structural Analysis when employed for Fault Diagnosis.
Because of the qualitative abstraction, the residual generators are only nominally sensitive to the faults they cover, in the sense that the fault variables appear in the residual generator expression.
However, the fault contribution on the residual signal cannot be quantified, especially in such non-linear and dynamic systems.</p>
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