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Digitally redesigned PAM controller and ideal state reconstructor for input time-delay/nondelay systems with nonsynchronous sampling

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Abstract

This paper develops a new digitally redesigned pulse-amplitude modulated (PAM) controller for a continuous-time input time-delay/nondelay system with nonsynchronous sampling. The concept of the law of the mean from the input integral calculus is utilized for the development of the equivalent digital predictor controllers from the available analog predictor controllers. As a result, the digitally controlled states closely match the original continuous-time states. To implement the developed discrete-time state-feedback PAM controller, this paper also develops an ideal discrete-time state using nonsynchronously sampled input-output data of the continuous-time input delay/nondelay system without establishing a dynamic observer.

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Authors and Affiliations

  1. Control System Laboratory, Department of Electrical Engineering, National Cheng Kung University, 701, Tainan, Taiwan, Republic of China

    Jason S. H. Tsai & Shiaw J. An

  2. Department of Electrical and Computer Engineering, University of Houston, 77204-4793, Houston, Texas

    Leang S. Shieh

Authors
  1. Jason S. H. Tsai
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  2. Shiaw J. An
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  3. Leang S. Shieh
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Additional information

This work was supported by the National Science Council of the Republic of China under contract NSC-84-2213-E-006-051, the NASA-Johnson Space Center under grant NAG-9-746, and the U.S. Army Research Office under DAAH 04-94-G-0227.

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Tsai, J.S.H., An, S.J. & Shieh, L.S. Digitally redesigned PAM controller and ideal state reconstructor for input time-delay/nondelay systems with nonsynchronous sampling. Circuits Systems and Signal Process 16, 325–347 (1997). https://doi.org/10.1007/BF01246716

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  • DOI: https://doi.org/10.1007/BF01246716

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