A Neural Network Diagnosis Approach for Analog Circuits

  • Authors:
  • Alessandra Fanni;Alessandro Giua;Michele Marchesi;Augusto Montisci

  • Affiliations:
  • Dip. di Ingegneria Elettrica ed Elettronica, Università di Cagliari, Piazza d‘Armi, 09123 Cagliari, Italy. fanni@diee.unica.it;Dip. di Ingegneria Elettrica ed Elettronica, Università di Cagliari, P.zza d‘Armi, 09123 Cagliari, Italy;Dip. di Ingegneria Elettrica ed Elettronica, Università di Cagliari, P.zza d‘Armi, 09123 Cagliari, Italy;Dip. di Ingegneria Elettrica ed Elettronica, Università di Cagliari, P.zza d‘Armi, 09123 Cagliari, Italy

  • Venue:
  • Applied Intelligence
  • Year:
  • 1999

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Abstract

This paper presents a neural network system for the diagnosis of analogcircuits and shows how the performance of such a system can be affected by the choice of differenttechniques used by its submodules. In particular we discuss the influenceof feature extraction techniques such as Fourier Transforms, Wavelets and Principal ComponentAnalysis. The system uses several different power supplies and as manyneural networks “in parallel”. Two different algorithms that canbe used to combine the candidate sets produced by each network arealso presented. The system is capable of diagnosing multiplefaults even if trained on single ones.