NDLI: Sensitivity of Ljung's algorithm for estimating blood flow

Content Provider	IEEE Xplore Digital Library
Author	Brovko, O. Zwart, A. Wiberg, D.M. Bellville, J.W. Arena, L.
Copyright Year	1979
Description	Author affiliation: University of California, Los Angeles, California (Brovko, O.; Wiberg, D.M.; Bellville, J.W.; Arena, L.) \|\| Institute of Medical Physics, Utrecht, The Netherlands (Zwart, A.)
Abstract	Use of Ljung's modification [1] of the extended Kalman filter in the estimation of pulmonary blood flow has been described elsewhere [2]. Many applications of the extended Kalman filter have been made to systems with parameters that are varying with time. We have adjusted Ljung's modification to this application, and also added small non-linear correction terms [3]. The evaluation of such identification algorithms for time-varying parameters must eventually reduce to an analysis of their performance in each practical application. The preliminary evaluation in [2] was based on experiments in human beings undergoing surgery, in which the pulmonary blood flow was relatively constant. Here we evaluate the performance of the algorithm on experiments in dogs, where drugs and other means were used to change cardiac output. Also, sources of error are discussed and their effect quantified with regard to the overall error. Sensitivities with respect to parameter variations are computed and graphed. The effect of model order is evaluated. Finally, the effect of starting the algorithm with different initial parameter values is investigated.
Starting Page	528
Ending Page	530
File Size	245975
Page Count	3
File Format	PDF
DOI	10.1109/CDC.1979.270235
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1979-12-12
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Blood flow Dogs Time varying systems Surgery Kalman filters Ventilation Equations Error analysis Fluid flow measurement Hospitals
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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