Estimating the quality of Oscillation-Based Test for detecting parametric faults

Abstract

This paper proposes a new performance characterization for Oscillation-Based Test (OBT). The ability of OBT for detecting deviation faults under simultaneous statistical fluctuation of the non-faulty parameters is evaluated. For this purpose, we use Monte Carlo simulations and a fault model that considers as faulty only one component of the filter under test while the others components adopt random values obtained from their fault-free statistical distributions. The new data reported here show (for the filters under study) the presence of hard-to-test components and low fault coverage values for small deviation faults.