• DocumentCode
    1371634
  • Title

    Time-domain fault diagnosis of analogue circuits in the presence of noise

  • Author

    Brygilewicz, V. ; Wojciechowski, J.

  • Author_Institution
    Inst. of Radioelectron., Warsaw Univ. of Technol., Poland
  • Volume
    145
  • Issue
    2
  • fYear
    1998
  • fDate
    4/1/1998 12:00:00 AM
  • Firstpage
    125
  • Lastpage
    131
  • Abstract
    An approach to multiple fault diagnosis in dynamic linear and nonlinear circuits based on testing of actual and simulation of nominal circuit is presented. Time domain integral sensitivity is used for constructing test equations. An adaptive algorithm for selecting time intervals for integral sensitivity is included. The least squares approach (LSA) to solve overdetermined diagnosis equations with noisy data is used in conjunction with the regularisation method of Tikhonov. Three illustrative examples show applications of the method
  • Keywords
    analogue circuits; circuit noise; fault diagnosis; least squares approximations; linear network analysis; nonlinear network analysis; time-domain analysis; adaptive algorithm; analogue circuits; dynamic linear circuits; dynamic nonlinear circuits; integral sensitivity; least squares approach; multiple fault diagnosis; noise; overdetermined diagnosis equations; regularisation method; test equations; time intervals; time-domain fault diagnosis;
  • fLanguage
    English
  • Journal_Title
    Circuits, Devices and Systems, IEE Proceedings -
  • Publisher
    iet
  • ISSN
    1350-2409
  • Type

    jour

  • DOI
    10.1049/ip-cds:19981744
  • Filename
    674081