eCite Digital Repository

Binary search for time-constant estimation in first order systems, FiO 2 - SpO2 case study

Citation

Fathabadi, OS and Gale, T and Olivier, JC and Dargaville, P and Wheeler, KI and Lim, Kathleen, Binary search for time-constant estimation in first order systems, FiO 2 - SpO2 case study, Proceedings of Biomedical Engineering International Conference (BMEiCON), 2013, 23-25 October 2013, Krabi, Thailand, pp. 1-5. ISBN 978-147991467-8 (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. © 2013 IEEE.

Item Details

Item Type:Refereed Conference Paper
Keywords:application examples, binary algorithms, direct search methods, estimation precision, first order systems, optimization problems, root mean square errors, unimodal functions, algorithms, biomedical engineering, mean square error, optimization
Research Division:Engineering
Research Group:Biomedical Engineering
Research Field:Biomedical Engineering not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in Engineering
Author:Fathabadi, OS (Mr Omid Sadeghi Fathabadi)
Author:Gale, T (Dr Timothy Gale)
Author:Olivier, JC (Professor JC Olivier)
Author:Dargaville, P (Professor Peter Dargaville)
Author:Wheeler, KI (Dr Kevin Wheeler)
Author:Lim, Kathleen (Ms Lim)
ID Code:119658
Year Published:2013
Deposited By:Rural Clinical School
Deposited On:2017-08-03
Last Modified:2017-09-20
Downloads:0

Repository Staff Only: item control page