Modeling a Class of Multi-Port NonLinearities in Wave Digital Structures

Alberto Bernardini, Kurt James Werner, Augusto Sarti, Julius Smith

Research output: Chapter in Book/Report/Conference proceedingConference contribution

24 Citations (Scopus)


Wave Digital Structures (WDS) are particularly interesting for applications of interactive modeling of nonlinear (NL) elements in the context of Virtual Analog modeling. NL circuits, however, often include multiple nonlinearities or multi-port nonlinearities, which cannot readily be accommodated by traditional WDS. In this work we present a novel method for modeling in the WD domain a class of multi-port NL elements that are obtained as the interconnection of linear and NL resistive bipoles. Our technique is based on a Piece-Wise Linear approximation of the individual bipoles that constitute the multi-port element. The method generalizes the existing solutions that are available in the literature as it enables the modeling of arbitrary interconnections between outer ports of the nonlinearity and individual ports of the local NL bipoles.
Original languageEnglish
Title of host publicationProceedings of the European Signal Processing Conference
Place of PublicationNice, France
Number of pages5
Publication statusPublished - 31 Aug 2015
Externally publishedYes
EventThe 2015 European Signal Processing Conference (EUSIPCO 2015) - Nice, France
Duration: 31 Aug 201504 Sep 2015


ConferenceThe 2015 European Signal Processing Conference (EUSIPCO 2015)


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