On Digital Realizations of Non-integer Order Filters
Typical approach to non-integer order filtering consists of analogue design and implementation. Digital realization of non-integer order systems is susceptible to problems such as infinite memory requirement and sensitivity to numerical errors. The aim of this paper is to present two efficient metho...
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| Veröffentlicht in: | Circuits, systems, and signal processing systems, and signal processing, 2016-06, Vol.35 (6), p.2083-2107 |
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| container_end_page | 2107 |
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| container_issue | 6 |
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| container_title | Circuits, systems, and signal processing |
| container_volume | 35 |
| creator | Baranowski, Jerzy Bauer, Waldemar Zagórowska, Marta Piątek, Paweł |
| description | Typical approach to non-integer order filtering consists of analogue design and implementation. Digital realization of non-integer order systems is susceptible to problems such as infinite memory requirement and sensitivity to numerical errors. The aim of this paper is to present two efficient methods for digital realization of non-integer order filters: discrete time-domain Oustaloup approximation and Laguerre impulse response approximation. Properties of both methods are investigated with use of non-integer low-pass filter. Filters realized with presented methods are then used for filtering of EEG signal. Paper concludes with discussion of merits and flaws of both methods. |
| doi_str_mv | 10.1007/s00034-016-0269-8 |
| format | Article |
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| subjects | Approximation Circuits Circuits and Systems Control systems Design engineering Digital Discrete element method Electrical Engineering Electronics and Microelectronics Engineering Filtering Filters Filtration Instrumentation Low pass filters Mathematical analysis Signal,Image and Speech Processing |
| title | On Digital Realizations of Non-integer Order Filters |
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