NDLI: Behavioral modeling of analog circuits by wavelet collocation method

Content Provider	IEEE Xplore Digital Library
Author	Xin Li Xuan Zeng Dian Zhou Xieting Ling
Copyright Year	2001
Description	Author affiliation: ASIC & Syst. State Key Lab., Fudan Univ., Shanghai, China (Xin Li)
Abstract	In this paper, we develop a wavelet collocation method with nonlinear companding for behavioral modeling of analog circuits. To construct the behavioral models, the circuit is first partitioned into building blocks and the input-output function of each block is then approximated by wavelets. As the blocks are mathematically represented by sets of simple wavelet basis functions, the computation cost for the behavioral simulation is significantly reduced. The proposed method presents several merits compared with those conventional techniques. First, the algorithm for expanding input-output functions by wavelets is a general-purpose approach, which can be applied in automatically modeling of different analog circuit blocks with different structures. Second, both the small signal effect and the large signal effect are modeled in a unified formulation, which eases the process of modeling and simulation. Third, a nonlinear companding method is developed to control the modeling error distribution, To demonstrate the promising features of the proposed method, a 4th order switched-current filter is employed to build the behavioral model.
Starting Page	65
Ending Page	69
File Size	523779
Page Count	5
File Format	PDF
ISBN	0780372476
ISSN	10923152
DOI	10.1109/ICCAD.2001.968599
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-11-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Analog circuits Circuit simulation Computational modeling Signal processing Computational efficiency Error correction Predictive models Polynomials Microelectronics Cost function
Content Type	Text
Resource Type	Article
Subject	Computer Graphics and Computer-Aided Design Computer Science Applications Software

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