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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations


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 languageEnglish (US)
Title of host publicationSYSID 2012 - 16th IFAC Symposium on System Identification, Final Program
PublisherIFAC Secretariat
Number of pages5
EditionPART 1
ISBN (Print)9783902823069
StatePublished - 2012
EventUniversite Libre de Bruxelles - Bruxelles, Belgium
Duration: Jul 11 2012Jul 13 2012

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
NumberPART 1
ISSN (Print)1474-6670


OtherUniversite Libre de Bruxelles

ASJC Scopus subject areas

  • Control and Systems Engineering


Dive into the research topics of 'Time-varying system identification for understanding the control of human knee impedance'. Together they form a unique fingerprint.

Cite this