Iterative-Based Optimal-Inverse Feedforward for Output-Tracking of Nonminimum-Phase Systems

  • Arom Boekfah Mahidol University


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Precision positioning plays a significant role in nonminimum-phase systems, especially toward biomedical applications. Precision output-tracking for a pre-specified output-trajectory can be obtained by iteratively modifying the control input based on previous cycle data of the output-tracking error. This paper presents the implementation of iterative control together with optimal inversion-based feedforward that further improves the output-tracking performance of nonminimum-phase systems. Experimental results for the piezo-based flexible structure system are provided to illustrate the improvements.

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Author Biography
Arom Boekfah

Department of Mechanical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170 Thailand

Vol 21 No 7, Dec 29, 2017
How to Cite
A. Boekfah, “Iterative-Based Optimal-Inverse Feedforward for Output-Tracking of Nonminimum-Phase Systems”, Eng. J., vol. 21, no. 7, pp. 475-483, Dec. 2017.

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