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Your search keyword '"Meller, Michał"' showing total 26 results
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26 results on '"Meller, Michał"'

23. A New Approach to Active Noise and Vibration Control — Part II: The Unknown Frequency Case.

Author

Niedźwiecki, Maciej and Meller, Michał

Subjects
*ACTIVE noise & vibration control, *ALGORITHMS, *ADAPTIVE filters, *SYSTEM identification, *RANDOM walks
Abstract

This paper presents a new approach to rejection of complex-valued sinusoidal disturbances acting at the output of a discrete-time stable linear plant with unknown and possibly time-varying dynamics. It is assumed that both the instantaneous frequency of the sinusoidal disturbance and its amplitude may be slowly varying with time and that the output signal is contaminated with wideband measurement noise. It is not assumed that a reference signal, correlated with the disturbance, is available. The proposed disturbance rejection algorithm is an extension of the algorithm derived for the constant-known-frequency case, described in Part I of this paper. [ABSTRACT FROM AUTHOR]

Published
2009
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26. Self-Optimizing Adaptive Vibration Controller.

Author

Niedźwiecki, Maciej and Meller, Michał

Subjects
*ELECTRIC controllers, *FREQUENCIES of oscillating systems, *BROADBAND communication systems, *GAUSSIAN distribution, *COMPUTER simulation, *MATHEMATICS education
Abstract

This paper presents a new approach to rejection of sinusoidal disturbances acting at the output of a discrete-time linear stable plant with unknown dynamics. It is assumed that the frequency of the sinusoidal disturbance is known, and that the output signal is contaminated with wideband measurement noise. The proposed controller, called SONIC (self-optimizing narrowband interference canceller), combines the coefficient fixing technique, used to "robustify" self-tuning minimum-variance regulators, with automatic adaptation gain tuning. Both theoretical analysis and computer simulations confirm that, under Gaussian assumptions, the closed-loop system converges (locally) in mean to the optimal solution. [ABSTRACT FROM AUTHOR]

Published
2009
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