Wave digital filters with multiple nonlinearities
Petrausch S, Rabenstein R (2004)
Publication Status: Published
Publication Type: Conference contribution, Conference Contribution
Publication year: 2004
Publisher: European Signal Processing Conference, EUSIPCO
Pages Range: 77-80
Article Number: 7080056
Event location: Vienna
ISBN: 9783200001657
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84979900384&origin=inward
Abstract
The wave digital filter (WDF) theory provides an elegant method for the discretization of linear continuous filters which is well known for possessing many desirable properties over other filter implementations. However, concerning nonlinear networks so far there are only solutions for circuits with a single nonlinearity, as the delay-free-feedback of the nonlinear element may result in delay-free-loops for multiple nonlinearities. In this paper we present a method to circumvent this problem by the introduction of a vector-nonlinearity. We show how to incorporate multiple nonlinear elements in a WDF structure and how to implement this method using the look-up-tables of the nonlinearities. This method of implementation is demonstrated for the scalar case by the well known Chua's circuit and for the vector case by a circuit with two real diodes.
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How to cite
APA:
Petrausch, S., & Rabenstein, R. (2004). Wave digital filters with multiple nonlinearities. In Proceedings of the 12th European Signal Processing Conference, EUSIPCO 2004 (pp. 77-80). Vienna, AT: European Signal Processing Conference, EUSIPCO.
MLA:
Petrausch, Stefan, and Rudolf Rabenstein. "Wave digital filters with multiple nonlinearities." Proceedings of the 12th European Signal Processing Conference, EUSIPCO 2004, Vienna European Signal Processing Conference, EUSIPCO, 2004. 77-80.
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