Periodic signal tracking for lightly damped systems

R. van der Maas, T. Singh, M. Steinbuch

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Abstract

The focus of this paper is on the development of time-delay filters to accomplish tracking of periodic signals with zero phase errors. The class of problems addressed include systems whose dynamics are characterized by lightly damped modes. A general approach for the zero-phase tracking of periodic inputs is presented followed by an illustration of single harmonic tracking of underdamped second-order systems with relative degree two. A general formulation of the approach is then posed for higher-order systems and systems including zeros. The paper concludes with the illustration of enforcing constraints to desensitize the time-delay filter to uncertainties in the location of the poles of the system and forcing frequencies. A numerical practical design case based on a medical X-ray system is used to illustrate the potential of the proposed technique.

Original languageEnglish
Article number061007
Pages (from-to)1-8
JournalJournal of Dynamic Systems, Measurement and Control : Transactions of the ASME
Volume139
Issue number6
DOIs
Publication statusPublished - 1 Jun 2017

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