Search results for "Band-stop filter"

showing 2 items of 2 documents

Subband image coding using filter banks with non-uniform passband distribution

2002

Subband filter banks with non-uniform passband distribution in frequency domain are studied. Several design examples are presented and compared with conventional uniform bandwidth filter banks. Image coding results show that filter banks with non-uniform bandwidth outperform filter banks with uniform bandwidth, especially in low bit rate coding.

Filter designControl theoryComputer scienceBandwidth (signal processing)Elliptic filterPrototype filterFilter bankBand-stop filterAlgorithmPassbandAnti-aliasing filterProceedings of ICICS, 1997 International Conference on Information, Communications and Signal Processing. Theme: Trends in Information Systems Engineering and Wireless Multimedia Communications (Cat. No.97TH8237)
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Robust output feedback control of non-collocated low-damped oscillating load

2021

For systems with order of dynamics higher than two and oscillating loads with low damping, a non-collocation of the sensing and control can deteriorate robustness of the feedback and, in worst case, even bring it to instability. Furthermore, for a contactless sensing of the oscillating mechanical load, like in the system under investigation, the control structure is often restricted to the single proportional feedback only. This paper proposes a novel robust feedback control scheme for a low-damped fourth-order system using solely the measured load displacement. For reference tracking, the loop shaping design relies on a band reject filter, while the plant uncertainties are used as robustne…

Mechanical loadTransducerControl theoryComputer scienceOscillationRobustness (computer science)Measurement uncertaintySensitivity (control systems)Band-stop filterActuator2021 29th Mediterranean Conference on Control and Automation (MED)
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