Synchronous and asynchronous structural implementation of Lukasiewicz norms in Spartan-6 FPGAs

摘要

Fast time to market, high performance and low cost make new FPGAs a competition for dedicated VLSI device in many area. Their array architecture with lots of programmable resources and IO pins is attractive hardware platform for implementation a complex fuzzy systems. The article discusses the realization of fuzzy Lukasiewicz operations in Xilinx Spartan-6 FPGAs, which in addition to Zadeh operations, are basic elements in fuzzy systems. Safe behavioral description of these operations that define functionalities independent of the hardware platform are presented. Structural descriptions of both synchronous and asynchronous fuzzy operations are shown, to carry out their primitive level realization and the effective utilization of basic elements of the FPGA structure. As the result the area optimized implementation of Lukasiewicz operations are obtained.