Frequency domain input-output analysis of sliding mode observers

Igor Boiko, Leonid Fridman

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations


The sliding mode (SM) observer dynamics is analyzed in the frequency domain. It is shown that the SM observer Is essentially a relay feedback-feedforward system. It Is feedback with respect to the measured variable of the system being observed, with the feedforward being the control applied to the system observed. Having noted this, the input-output properties of observer dynamics are analyzed with the use of the Locus of a Perturbed Relay System (LPRS) method. The performance of the observer is assessed via the use of the frequency response techniques. An example of performance analysis of the observer dynamics in the frequency domain is given.

Original languageBritish English
Title of host publicationProceedings of the 2006 American Control Conference
Number of pages6
StatePublished - 2006
Event2006 American Control Conference - Minneapolis, MN, United States
Duration: 14 Jun 200616 Jun 2006

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619


Conference2006 American Control Conference
Country/TerritoryUnited States
CityMinneapolis, MN


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