Using artificial neural networks or Lagrange interpolation to characterizethe faults in an analog circuit: An experimental study

A technique for diagnosing multiple faults in analog circuits from their im pulse response function using a fault dictionary was developed, Dirac impul se input to the circuit was simulated and time domain features of the outpu t response were used to build the dictionary, The test of a real circuit by means of a fault dictionary gives realistic results provided the simulated and measured values are similar. Consequently, the choice of the model use d in the simulation is important. The precautions to realize the measuremen t are described.