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 language | English |
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Article number | 061007 |
Pages (from-to) | 1-8 |
Journal | Journal of Dynamic Systems, Measurement and Control : Transactions of the ASME |
Volume | 139 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1 Jun 2017 |