Analog circuit behavioral modeling via wavelet collocation method with auto-companding

Authors:
Jian Wang;Jun Tao;Xuan Zeng;Charles Chiang;Dian Zhou
Affiliations:
Fudan University, Shanghai, China P.R.;Fudan University, Shanghai, China P.R.;Fudan University, Shanghai, China P.R.;Synopsys Inc., Mountain View, CA;University of Texas at Dallas Richardson
Venue:
Proceedings of the 2004 Asia and South Pacific Design Automation Conference
Year:
2004

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Abstract

In this paper, we propose an auto-companding technique for the analog behavioral modeling via wavelet collocation method. The companding function is automatically constructed according to the singularities of the input-ouput function of the circuit block. Such a general-purpose technique can be applied for the automatic modeling of arbitrary building block of arbitrary input-output function. Moreover, compared with the published modeling approaches, this method works more efficiently in reducing both the modeling error and the number of basis functions in wavelet expansion.