The Circuit Implementation of a Wavelet Function Approximator

Authors:
Nalan Özkurt;F. Acar Savaci;Mustafa Gündüzalp
Affiliations:
Dokuz Eylul University, Electrical and Electronics Eng. Department, İzmir, Turkey;İzmir Institute of Technology, Electrical and Electronics Eng. Department, İzmir, Turkey;Dokuz Eylul University, Electrical and Electronics Eng. Department, İzmir, Turkey
Venue:
Analog Integrated Circuits and Signal Processing
Year:
2002

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Abstract

This paper describes the analog synthesis of a wavelet function approximator using sigmoidal mother wavelet. Any finite energy multivariate function can be approximated by this analog circuit using the multiresolution approximation property of the wavelet decomposition. The approximator circuit includes bipolar junction transistors, operational amplifiers and linear passive circuit elements.