A class of broad band excitation designed and applied for nonlinear system identification: A wet-clutch application

Widanalage Dhammika Widanage, Joannes Schoukens

Research output: Chapter in Book/Report/Conference proceedingMeeting abstract (Book)

Abstract

The poster presents a range of broadband signals and their advantages for nonlinear identification. They belong to the class of signals called multisine signals and offer great design flexibility, such as the frequency content, signal amplitude levels or the amplitude distribution. Depending on the particular nonlinear application these attributes can be effectively designed to drive the system into a dynamic region of interest while maintaining within any operating constraints. Three signals designs are illustrated which are the random phased multisine, positively skewed multisine and crest factor optimised multisine. Further when measuring for identification, the signals can be combined with a nominal control signal of the system to enrich and model its finer dynamics. All these signals were made use of to effectively identify the pressure dynamics of a wet-clutch system.
Original languageEnglish
Title of host publicationPresentation of poster at the European Research Network on System Identification workshop (ERNSI 2011), Nice (France), 25-28 September 2011
Publication statusPublished - 25 Sep 2011
EventUnknown -
Duration: 25 Sep 2011 → …

Conference

ConferenceUnknown
Period25/09/11 → …

Keywords

  • multisine signals

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