I. Rojas et al., COMPACT CMOS FUZZY CONTROLLERS USING THE NORMALIZED PRODUCT OF ADAPTIVE MEMBERSHIP FUNCTIONS, Electronics Letters, 33(3), 1997, pp. 221-223
A CMOS circuit for the simultaneous computation of linguistic values a
nd the T-norm in fuzzy controllers is proposed. The circuit approximat
es a differentiable multiple-input true T-norm: a normalised product o
f Gaussian membership functions with adaptive heights. this results in
a compact analogue implementation, avoiding the use of an explicit de
fuzzifier, in which the circuit complexity of the whole controller doe
s not increase with the number of rules.