Improving Intersample Behavior in Discrete-Time System Inversion: With Application to LTI and LPTV Systems

Autor: Tom Oomen, Wataru Ohnishi, Hiroshi Fujimoto, Jurgen van Zundert
Přispěvatelé: Control Systems Technology, EAISI High Tech Systems
Rok vydání: 2020
Předmět:
Zdroj: IEEE/ASME Transactions on Mechatronics, 25(1):8902055, 55-65. Institute of Electrical and Electronics Engineers
ISSN: 1941-014X
1083-4435
DOI: 10.1109/tmech.2019.2953829
Popis: Discrete-time system inversion for perfect tracking goes at the expense of intersample behavior. The aim of this article is the development of a discrete-time inversion approach that improves continuous-time performance by also addressing the intersample behavior. The approach balances the on-sample and intersample behavior and provides a whole range of new solutions, with stable inversion and multirate inversion as special cases. The approach is successfully applied to a linear periodically time-varying system in both simulations and experiments. The approach improves the intersample behavior through discrete-time system inversion and outperforms existing approaches.
Databáze: OpenAIRE