1995
DOI: 10.1109/5.364488
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Hardware solutions for fuzzy control

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Cited by 83 publications
(37 citation statements)
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“…Furthermore, some special instructions (with a total of 24 lookups + 16 compares + 16ϒ MAX operations) are required to perform the FIS, which come primarily from the fuzzification of two input variables (8 lookups), fuzzy OR operations (16 compares), fuzzy minimum implication (16 lookups), and aggregation of the output (16ϒ MAX operations). Fortunately, these operations can be done very efficiently in the latest range of DSPs, which provide single cycle multiply and add, table lookups and comparison instructions [26,27]. Thus, the FIC RR-WF estimation has the computational requirement of 3Np(l) + 2N + ϒ + 2 complex multiplications for the lth OFDM block.…”
Section: Computational Complexity Analysismentioning
confidence: 99%
“…Furthermore, some special instructions (with a total of 24 lookups + 16 compares + 16ϒ MAX operations) are required to perform the FIS, which come primarily from the fuzzification of two input variables (8 lookups), fuzzy OR operations (16 compares), fuzzy minimum implication (16 lookups), and aggregation of the output (16ϒ MAX operations). Fortunately, these operations can be done very efficiently in the latest range of DSPs, which provide single cycle multiply and add, table lookups and comparison instructions [26,27]. Thus, the FIC RR-WF estimation has the computational requirement of 3Np(l) + 2N + ϒ + 2 complex multiplications for the lth OFDM block.…”
Section: Computational Complexity Analysismentioning
confidence: 99%
“…This membership function circuit shares the advantages of Fig. 4(b) regarding control of the centers and widths through voltages applied to high input impedance terminals (7) On the other hand, the slope at the crossover points is controlled by the large signal transconductance of the MOS transistor 5 (8) The main advantage of this membership function circuit is that it does not require any linearization circuitry-why to linearize if the whole behavior is nonlinear? Thus, it features minimum area occupation and power consumption, and full usage of the transconductor input dynamic range.…”
Section: A Membership Function Circuitrymentioning
confidence: 99%
“…The hardware required for these applications can be realized in two alternative ways. One employs analog circuitry only at A/D and D/A conversion interfaces, while the fuzzy processing is realized in digital domain by either general-purpose processors or dedicated ASIC's [5]- [8]. The other realizes the fuzzy processing itself in the analog domain, and employs the digital circuitry for programmability and reconfigurability [9].…”
mentioning
confidence: 99%
“…Programmable implementations of fuzzy processing are either additions to existing processors (such as found in the CPU12 from Motorola [12] or in the FLORA processor [13]), or custom fuzzy programmable processors. The FLORA processor extends a RISC instruction set with the min and macc instructions (for the minimum calculation and the multiply-and-accumulate operation, respectively) to improve fuzzy processing.…”
Section: Related Workmentioning
confidence: 99%