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SYAD: Anwendungen der Nichtlinearen Dynamik in Medizin und Technik

SYAD 2: Anwendungen der Nichtlinearen Dynamik in Medizin und Technik: Poster

SYAD 2.6: Poster

Donnerstag, 14. März 2002, 15:30–18:00, D

On-line Process Control via Adaptive Symbolic Dynamics — •Günter Radons — Institut für Physik, TU Chemnitz, D-09107 Chemnitz

Many successful concepts of nonlinear dynamics rely on the monitoring of trajectories in phase space. For ideal systems the resulting algorithms are very powerful and work well. Applying these methods to real systems, however, creates problems due to complex stochastic influences, non-stationarity, or, an incomplete monitoring of the system variables. We propose a new concept for process control in such systems. Our approach relies on an adaptive version [1] of a well-known technique for chaotic systems, namely symbolic dynamics. In contrast to trajectory based control mechanisms, the associated coarse graining of the state space guarantees greater flexibility and robustness against noise.

[1] Stiller, J.C., Radons, G.: IEEE Signal Processing Letters 6 (1999) 213-216.