Trajectory Anti-Aliasing on Guaranteed-Passive Simulation of Nonlinear Physical Systems

Rémy Muller 1 Thomas Hélie 1
1 S3AM - Systèmes et Signaux Sonores : Audio/Acoustique, instruMents
STMS - Sciences et Technologies de la Musique et du Son
Abstract : This article is concerned with the accurate simulation of passive nonlinear dynamical systems with a particular attention paid on aliasing reduction in the pass-band. The approach is based on the combination of Port-Hamiltonian Systems, continuous-time state-space trajectories reconstruction and exact continuous-time anti-aliasing filter realization. The proposed framework is applied on a nonlinear LC oscillator circuit to study the effectiveness of the method.
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Rémy Muller, Thomas Hélie. Trajectory Anti-Aliasing on Guaranteed-Passive Simulation of Nonlinear Physical Systems. 20th International Conference on Digital Audio Effects (DAFx-17), Sep 2017, Edinburgh, United Kingdom. ⟨hal-01550618⟩

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