Lattice Wave Digital Filter based IIR SystemIdentification with reduced coefficients

Sondhi, Akanksha; Barsainya, Richa; Rawat, Tarun Kumar

doi:10.1007/978-3-319-47952-1_56

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2021

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“…Obviously, one designs an identification method with a specific model -white box or black box-in mind (see e.g. [12,13] for Volterra, or [14] for WDF). In recent years nonetheless, hybrid modeling, or grey box, has gained considerable momentum for identification.…”

Section: Introductionmentioning

confidence: 99%

Identification of Nonlinear Circuits as Port-Hamiltonian Systems

Najnudel

Müller

Hélie

et al. 2021

2021 24th International Conference on Digital Audio Effects (DAFx)

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This paper addresses identification of nonlinear circuits for power-balanced virtual analog modeling and simulation. The proposed method combines a port-Hamiltonian system formulation with kernel-based methods to retrieve model laws from measurements. This combination allows for the estimated model to retain physical properties that are crucial for the accuracy of simulations, while representing a variety of nonlinear behaviors. As an illustration, the method is used to identify a nonlinear passive peaking EQ.

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Section: Introductionmentioning

confidence: 99%