Realization of causal current output-based optimal full/reducedorder observer and tracker for the linear sampled-data system with a direct transmission term

Jason Sheng Hong Tsai, Wen Teng Hsu, Tzong Jiy Tsai, Kai Lin, Shu Mei Guo, Leang San Shieh

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Realization of causal current output-based optimal full/reduced-order observer and tracker for the linear sampled-data system with a direct transmission term from input to output is proposed in this paper. First, a high-gain optimal linear quadratic analog tracker based on the reduced-order observer is proposed for the system model with a direct transmission term from input to output, so that it can effectively induce a high quality performance on state estimation and trajectory tracking design theoretically. Then, the prediction-based digital redesign method enables it to make the digitally controlled system to track the desired trajectory closely. However, there induces a causal problem on the realization of current output-based optimal full/reduced-order observer and tracker for the sampled-data system with a direct transmission term form input to measured output. To overcome this problem, a realization of the causal observer-based sampled-data tracker is newly proposed in this paper. An illustrative example is presented to demonstrate the effectiveness of the proposed method.

Original languageEnglish
Pages (from-to)729-749
Number of pages21
JournalOptimal Control Applications and Methods
Volume36
Issue number6
DOIs
Publication statusPublished - 2015 Nov 1

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Software
  • Control and Optimization
  • Applied Mathematics

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