Elimination of delay-free loops in discrete-time models of nonlinear acoustic systems

نویسندگان

  • Gianpaolo Borin
  • Giovanni De Poli
  • Davide Rocchesso
چکیده

Nonlinear acoustic systems are often described by means of nonlinear maps acting as instantaneous constraints on the solutions of a system of linear differential equations. This description leads to discrete-time models exhibiting noncomputable loops. We present a solution to this computability problem by means of geometrical transformation of the nonlinearities and algebraic transformation of the time-dependent equations. The proposed solution leads to stable and accurate simulations even at relatively low sampling rates.

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عنوان ژورنال:
  • IEEE Trans. Speech and Audio Processing

دوره 8  شماره 

صفحات  -

تاریخ انتشار 2000