Analog Complex Wavelet Filters

S.A.P. Haddad*, J.M.H. Karel, R.L.M. Peeters, R.l. Westra, W.a. Serdijn

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingAcademicpeer-review


This paper presents an analog implementation of the complex wavelet transform using both the complex first order system (CFOS) and the Pade approximation. The complex wavelet filter design is based on the combination of the real and the imaginary state-space descriptions that implement the respective transfer functions. In other words, a complex filter is implemented by an ordinary state-space structure for the real part and an extra C matrix for the imaginary part. Several complex wavelets, such as Gabor, Gaussian and Morlet complex wavelets, are obtained and simulations demonstrate excellent approximations to the ideal wavelets.
Original languageEnglish
Title of host publication2005 IEEE International Symposium on Circuits and Systems
ISBN (Print)0-7803-8834-8
Publication statusPublished - May 2005
EventIEEE International Symposium on Circuits and Systems - Kobe, Japan
Duration: 23 May 200526 May 2005


SymposiumIEEE International Symposium on Circuits and Systems
Abbreviated titleISCAS 2005

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