The paper presents a general procedure for the computation of filter networks made of linear filters and non-linear non-algebraic (dynamic) elements. The method is developed in the Kirchhoff domain and applies to cases where the network contains an arbitrary number of delay-free paths that involve nonlinear elements. Compared to existing techniques the method does not require a rearrangement of the network structure, instead it subdivides the network into computational substructures specified by appropriate matrices related to the network topology. Sufficient conditions are discussed for the applicability of the method, and results are provided that relate performance of the method to the properties of the nonlinear elements and to the network topology. The last part of the paper discusses applications of the method to the simulation of acoustic systems, including multidimensional wave propagation by means of waveguide-mesh techniques.

Efficient computation of nonlinear filter networks with delay-free loops and applications to physically-based sound models

FONTANA, Federico;
2005-01-01

Abstract

The paper presents a general procedure for the computation of filter networks made of linear filters and non-linear non-algebraic (dynamic) elements. The method is developed in the Kirchhoff domain and applies to cases where the network contains an arbitrary number of delay-free paths that involve nonlinear elements. Compared to existing techniques the method does not require a rearrangement of the network structure, instead it subdivides the network into computational substructures specified by appropriate matrices related to the network topology. Sufficient conditions are discussed for the applicability of the method, and results are provided that relate performance of the method to the properties of the nonlinear elements and to the network topology. The last part of the paper discusses applications of the method to the simulation of acoustic systems, including multidimensional wave propagation by means of waveguide-mesh techniques.
3-9810299-8-4
File in questo prodotto:
File Dimensione Formato  
official_IEEE.pdf

non disponibili

Descrizione: Documento in Post-print
Tipologia: Documento in Pre-print
Licenza: Non pubblico
Dimensione 843.79 kB
Formato Adobe PDF
843.79 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11390/850921
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 6
  • ???jsp.display-item.citation.isi??? 2
social impact