Re: digital defuzzifier

From: Thomas Runkler (runkler@mchp.siemens.de)
Date: Wed Mar 07 2001 - 19:40:49 MET

  • Next message: Masoud Nikravesh: "BISC: Zadeh: The Robert Example"

    Kyriakos Deliparashos <depa@intracom.gr> wrote:

    : I'm currently trying to find out how a digital defuzzifier block could
    : be realised in hardware.
    : I've a pretty good understanding of how this could be implemented in
    : analog (by utilizing opamps for example) and I was wondering if this
    : could be done efficiently in digital as well.

    Dear Kyriakos,

    a couple of years ago we developed some digital defuzzifier hardware
    in VHDL. We found that a considerable reduction in chip size and
    speed could be achieved by an approximate computation of the centroid.
    Here is a reference for this work:

    T. A. Runkler and M. Glesner: "DECADE - Fast Centroid Approximation
    Defuzzification for Real Time Fuzzy Control Applications", Proc. of
    ACM Symposium on Applied Computing, Phoenix AZ, 1994, pages 161-165.

    Best regards,

    Thomas

    ---
    Thomas A. Runkler		Tel.	++49 89 636 45372
    Siemens AG, CT IC 4		Fax	++49 89 636 49767
    81730 Munich, Germany		Email 	Thomas.Runkler@mchp.siemens.de
    

    ############################################################################ This message was posted through the fuzzy mailing list. (1) To subscribe to this mailing list, send a message body of "SUB FUZZY-MAIL myFirstName mySurname" to listproc@dbai.tuwien.ac.at (2) To unsubscribe from this mailing list, send a message body of "UNSUB FUZZY-MAIL" or "UNSUB FUZZY-MAIL yoursubscription@email.address.com" to listproc@dbai.tuwien.ac.at (3) To reach the human who maintains the list, send mail to fuzzy-owner@dbai.tuwien.ac.at (4) WWW access and other information on Fuzzy Sets and Logic see http://www.dbai.tuwien.ac.at/ftp/mlowner/fuzzy-mail.info (5) WWW archive: http://www.dbai.tuwien.ac.at/marchives/fuzzy-mail/index.html



    This archive was generated by hypermail 2b30 : Wed Mar 07 2001 - 19:51:38 MET