First stage analysis on determining the signal quality coefficient in vibro-acoustic domain: Waveform integrity analysis

This paper presents the first stage of the analysis on determining the Signal Quality Coefficient in the vibro-acoustic domain. This stage is mandatory in order to determine if two analog signals, one considered “target” and the other “reference”, have a certain amount of similarity and the “target” waveform maintain its integrity reported to the “reference” waveform. This analysis can be used for diagnosis of conditioning circuits of the vibro-acoustic data acquisition systems in order to verify the analogic signals passing through the preconditioning circuits of the AD converters. A cross-correlation algorithm is used to quantify the integrity of the “target” signal respect to the “reference” signal. This waveform integrity analysis is referred to as a time analysis and its result returns the value of integrity coefficient.