Title :
A fitting approach to generate symbolic expressions for linear and nonlinear analog circuit performance characteristics
Author :
Daems, Walter ; Gielen, Georges ; Sansen, Willy
Author_Institution :
Dept. of Electr. Eng., Katholieke Univ., Leuven, Belgium
Abstract :
This paper presents a novel method to automatically generate symbolic expressions for both linear and nonlinear circuit characteristics using a template-based fitting of numerical, simulated data. The aim of the method is to generate convex, interpretable expressions. The posynomiality of the generated expressions enables the use of efficient geometric programming techniques when using these expressions for circuit sizing and optimization. Attention is paid to estimating the relative ´goodness-of-fit´ of the generated expressions. Experimental results illustrate the capabilities of the approach
Keywords :
analogue integrated circuits; circuit analysis computing; design of experiments; geometric programming; linear network analysis; nonlinear network analysis; numerical analysis; symbol manipulation; automatic symbolic expressions generation; circuit optimization; circuit sizing; convex interpretable expressions; design of experiments; geometric programming techniques; linear analog ICs; nonlinear analog ICs; numerical simulated data; posynomial performance parameter expressions; template-based fitting; transistor-level analog integrated circuits; AC generators; Analog circuits; Analog integrated circuits; Character generation; Circuit simulation; Design automation; Electronic design automation and methodology; Knowledge acquisition; Nonlinear circuits; Transfer functions;
Conference_Titel :
Design, Automation and Test in Europe Conference and Exhibition, 2002. Proceedings
Conference_Location :
Paris
Print_ISBN :
0-7695-1471-5
DOI :
10.1109/DATE.2002.998283
