Adaptive Output Tracking of Driven Oscillators
Heart dynamics are usually unknown and require the application of real-time control technique because of the fatal nature of most cardiac arrhythmias. The problem of controlling the heart dynamics in a real-time manner is formulated as an adaptive learning output-tracking problem. For a class of non...
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| Format: | Article |
| Language: | English |
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Wiley
2008-01-01
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| Series: | Journal of Control Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2008/641847 |
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| _version_ | 1832555414989832192 |
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| author | Lili Diao Martin Guay |
| author_facet | Lili Diao Martin Guay |
| author_sort | Lili Diao |
| collection | DOAJ |
| description | Heart dynamics are usually unknown and require the application of real-time control technique because of the fatal nature of most cardiac arrhythmias. The problem of controlling the heart dynamics in a real-time manner is formulated as an adaptive learning output-tracking problem. For a class of nonlinear dynamic systems with unknown nonlinearities and nonaffine control input, a Lyapunov-based technique is used to develop a control law. An adaptive learning algorithm is exploited that guarantees the stability of the closed-loop system and convergence
of the output tracking error to an adjustable neighborhood of the origin. In addition, good approximation of the unknown nonlinearities is also achieved by incorporating a persistent exciting signal in the parameter update law. The effectiveness of the proposed method is demonstrated by an application to a cardiac conduction system modelled by two coupled driven oscillators. |
| format | Article |
| id | doaj-art-3aa93fae228e49e5baa7461f2359dab2 |
| institution | Kabale University |
| issn | 1687-5249 1687-5257 |
| language | English |
| publishDate | 2008-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Control Science and Engineering |
| spelling | doaj-art-3aa93fae228e49e5baa7461f2359dab22025-02-03T05:48:18ZengWileyJournal of Control Science and Engineering1687-52491687-52572008-01-01200810.1155/2008/641847641847Adaptive Output Tracking of Driven OscillatorsLili Diao0Martin Guay1Chemical Engineering Department, Queen's University, Kingston, ON, K7L 3N6, CanadaChemical Engineering Department, Queen's University, Kingston, ON, K7L 3N6, CanadaHeart dynamics are usually unknown and require the application of real-time control technique because of the fatal nature of most cardiac arrhythmias. The problem of controlling the heart dynamics in a real-time manner is formulated as an adaptive learning output-tracking problem. For a class of nonlinear dynamic systems with unknown nonlinearities and nonaffine control input, a Lyapunov-based technique is used to develop a control law. An adaptive learning algorithm is exploited that guarantees the stability of the closed-loop system and convergence of the output tracking error to an adjustable neighborhood of the origin. In addition, good approximation of the unknown nonlinearities is also achieved by incorporating a persistent exciting signal in the parameter update law. The effectiveness of the proposed method is demonstrated by an application to a cardiac conduction system modelled by two coupled driven oscillators.http://dx.doi.org/10.1155/2008/641847 |
| spellingShingle | Lili Diao Martin Guay Adaptive Output Tracking of Driven Oscillators Journal of Control Science and Engineering |
| title | Adaptive Output Tracking of Driven Oscillators |
| title_full | Adaptive Output Tracking of Driven Oscillators |
| title_fullStr | Adaptive Output Tracking of Driven Oscillators |
| title_full_unstemmed | Adaptive Output Tracking of Driven Oscillators |
| title_short | Adaptive Output Tracking of Driven Oscillators |
| title_sort | adaptive output tracking of driven oscillators |
| url | http://dx.doi.org/10.1155/2008/641847 |
| work_keys_str_mv | AT lilidiao adaptiveoutputtrackingofdrivenoscillators AT martinguay adaptiveoutputtrackingofdrivenoscillators |