Re: inquiry into Matlab, SIMULINK, and Fuzzy Toolbox

Timo Hosti (
Thu, 22 Feb 1996 19:15:40 +0100

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From: (Allen Gaminde) Newsgroups: Subject: Re: inquiry into Matlab, SIMULINK, and Fuzzy Toolbox Date: Fri, 9 Feb 1996 14:06:06 GMT Organization: Naval Surface Warfare Center - Dahlgren Div. Message-ID: <> References: <4fere6$> (Amendment9) wrote:

>I am looking into software packages for the design of a fuzzy controller >for a system that exhibits chaotic behavior. Has anyone here had >experience with Matlab's SIMULINK and Fuzzy Toolbox packages >for the design of fuzzy controllers? If so, how do you compare this >package with others?

Hello Ellen, I have used Matlab's Fuzzy Logic Toolbox and found it to be very easy to use and quite extensive for the design of Fuzzy Controllers. It has both a GUI-Based interface and a command-line interface. If you intend to use Genetic Algorithms for membership function fine-tuning, you will need the command-line control. I don't know what your platform is but if you are using X-windows on a unix machine, there is a very nice package from the University of Oldenburg titled FOOL for Fuzzy Organizer OLdenburg. You can get the package by anonymous ftp from in the /pub/fool directory.

>I may also be interested in using Genetic >Algorithms for fine tuning the membership functions. Has anyone >had experience with this or can refer me to papers on it?

Try "Tuning and Optimisation of Membership functions of Fuzzy Logic Controllers by Genetic Algorithms" by M. Mohammadian and R. J. Stonier, IEEE International Workshop on Robot and Human Communication 0-7803-2002-6/94

If you're interested in Rule Set optimisation as well, try "Simultaneous Design of Membership Functions and Rule Sets for Fuzzy Controllers Using Genetic Algorithms" by Abdollah Homaifar and Ed McCormick, IEEE Transactions on Fuzzy Systems, Vol. 3, No. 2, May 1995


>Ellen Applebaum >University of Colorado, >Denver, Colorado USA >email:

Hope this helps.

--------------------------------------- R. Allen Gaminde Computer Eng. Naval Surface Warfare Center, Dahlgren VA ----------------------------------------