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Binary search for time-constant estimation in first order systems, FiO2 - SpO2 case study
Citation
Sadeghi Fathabadi, O and Gale, TJ and Olivier, JC and Dargaville, PA and Wheeler, KI and Lim, KL, Binary search for time-constant estimation in first order systems, FiO2 - SpO2 case study, Proceedings of the 6th Biomedical Engineering International Conference (BMEiCON2013), 23-25 October 2013, Krabi, Thailand, pp. 1-5. ISBN 978-1-4799-1466-1 (2013) [Refereed Conference Paper]
Copyright Statement
Copyright 2013 IEEE
DOI: doi:10.1109/BMEiCon.2013.6687666
Abstract
A binary search method for fast identification of the time-constant in first order systems is proposed. The unimodality of the Root Mean Square Error (RMSE) is exploited to achieve fast convergence. As an application example, the method is applied to the oxygen transport system of a preterm infant. Performance of the proposed binary algorithm is compared with a direct search method for two different selections of primary range and estimation precision. The results verify convergence, accuracy, and speed of the proposed algorithm in a practical identification application with noisy recorded signals. The algorithm is also shown to be successful in following the correct trajectory even when the best value of the time constant is out of the primary search space. This method can be applied to any one-dimensional optimization problem where the parameter of interest is a unimodal function of the unknown variable.
Item Details
Item Type: | Refereed Conference Paper |
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Keywords: | binary search, oxygen saturation, application examples, binary algorithms, direct search methods, estimation precision, first order systems, optimization problems, root mean square errors, unimodal functions |
Research Division: | Engineering |
Research Group: | Biomedical engineering |
Research Field: | Biomedical engineering not elsewhere classified |
Objective Division: | Health |
Objective Group: | Clinical health |
Objective Field: | Clinical health not elsewhere classified |
UTAS Author: | Sadeghi Fathabadi, O (Mr Omid Sadeghi Fathabadi) |
UTAS Author: | Gale, TJ (Dr Timothy Gale) |
UTAS Author: | Olivier, JC (Professor JC Olivier) |
UTAS Author: | Dargaville, PA (Professor Peter Dargaville) |
UTAS Author: | Wheeler, KI (Dr Kevin Wheeler) |
UTAS Author: | Lim, KL (Miss Kai Lim) |
ID Code: | 89639 |
Year Published: | 2013 |
Deposited By: | Engineering |
Deposited On: | 2014-03-11 |
Last Modified: | 2018-03-27 |
Downloads: | 1 View Download Statistics |
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