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Fuzzy logic does real time on the DSP

Posted: 02 Jul 2004     Print Version  Bookmark and Share

Keywords:Fuzzy logic  controller  DSP  real time  safety-critical system 

You can use standard off-the-shelf microprocessors to build fuzzy-logic systems. But what if you're designing a real-time, safety-critical system? Fuzzy-logic controllers sometimes require more processing power to work in real time. Conventional microprocessors are adequate for most applications--even fuzzy-logic applications--but not always for safety-critical ones that require extremely fast and predictable response times. When conventional processors aren't fast enough, a digital signal processor (DSP) may be just what your system needs.

DSPs, the specialised microprocessors with math-oriented features and instruction sets, were initially used only in signal-processing applications. Now they've become more popular as the variety and quality of DSP software-development tools have increased. DSPs are now cost-competitive with general-purpose microprocessors. Today any application that can benefit from high-speed multiply/accumulate (MAC) operations is a candidate for DSP processors.

This article describes the components of a fuzzy-logic system and give you an example of how to implement one using a DSP.

Read more from the PDF document.




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