Time-varying system identification for understanding the control of human knee impedance

Daniel Ludvig; Serge Pfeifer; Xiao Hu; Eric J. Perreault

doi:10.3182/20120711-3-BE-2027.00410

Time-varying system identification for understanding the control of human knee impedance

Daniel Ludvig^*, Serge Pfeifer, Xiao Hu, Eric J. Perreault

^*Corresponding author for this work

Biomedical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Scopus citations

Abstract

There are many challenges to designing a prosthetic limb capable of restoring natural movements. One of these is that it should replicate the complex, time varying behavior of the original limb so as to restore natural interactions with the environment. Unfortunately, there are many experimental and computational challenges associated with obtaining accurate estimates of limb impedance during movement. Here we present a time-varying system identification algorithm suitable for this purpose, and demonstrate how it can be used to estimate the impedance of the human knee during time-varying conditions relevant to locomotion.

Original language	English (US)
Title of host publication	SYSID 2012 - 16th IFAC Symposium on System Identification, Final Program
Pages	1306-1310
Number of pages	5
Edition	PART 1
DOIs	https://doi.org/10.3182/20120711-3-BE-2027.00410
State	Published - Oct 9 2012
Event	Universite Libre de Bruxelles - Bruxelles, Belgium Duration: Jul 11 2012 → Jul 13 2012

Publication series

Name	IFAC Proceedings Volumes (IFAC-PapersOnline)
Number	PART 1
Volume	16
ISSN (Print)	1474-6670

Other

Other	Universite Libre de Bruxelles
Country	Belgium
City	Bruxelles
Period	7/11/12 → 7/13/12

ASJC Scopus subject areas

Control and Systems Engineering

Access to Document

10.3182/20120711-3-BE-2027.00410

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Ludvig, D., Pfeifer, S., Hu, X., & Perreault, E. J. (2012). Time-varying system identification for understanding the control of human knee impedance. In SYSID 2012 - 16th IFAC Symposium on System Identification, Final Program (PART 1 ed., pp. 1306-1310). (IFAC Proceedings Volumes (IFAC-PapersOnline); Vol. 16, No. PART 1). https://doi.org/10.3182/20120711-3-BE-2027.00410

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title = "Time-varying system identification for understanding the control of human knee impedance",

abstract = "There are many challenges to designing a prosthetic limb capable of restoring natural movements. One of these is that it should replicate the complex, time varying behavior of the original limb so as to restore natural interactions with the environment. Unfortunately, there are many experimental and computational challenges associated with obtaining accurate estimates of limb impedance during movement. Here we present a time-varying system identification algorithm suitable for this purpose, and demonstrate how it can be used to estimate the impedance of the human knee during time-varying conditions relevant to locomotion.",

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Ludvig, D, Pfeifer, S, Hu, X & Perreault, EJ 2012, Time-varying system identification for understanding the control of human knee impedance. in SYSID 2012 - 16th IFAC Symposium on System Identification, Final Program. PART 1 edn, IFAC Proceedings Volumes (IFAC-PapersOnline), no. PART 1, vol. 16, pp. 1306-1310, Universite Libre de Bruxelles, Bruxelles, Belgium, 7/11/12. https://doi.org/10.3182/20120711-3-BE-2027.00410

Time-varying system identification for understanding the control of human knee impedance. / Ludvig, Daniel; Pfeifer, Serge; Hu, Xiao; Perreault, Eric J.

SYSID 2012 - 16th IFAC Symposium on System Identification, Final Program. PART 1. ed. 2012. p. 1306-1310 (IFAC Proceedings Volumes (IFAC-PapersOnline); Vol. 16, No. PART 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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