Loop Transfer Recovery for Discrete-Time Plants with Direct Feedthrough Terms

DOI Web Site Web Site 1 Citations 16 References

Bibliographic Information

Other Title
  • Loop Transfer Recovery for Discrete-Tim

Search this article

Abstract

For discrete-time plants with direct feedthrough terms, we consider a loop transfer recovery (LTR) technique based on the Riccati equation formalism. We find that the recovery procedure at the plant input side should utilize the correlation between a disturbance and an observation noise. The variance of the observation noise component independent of the disturbance is taken as a parameter for the recovery. It should be noted that most discrete-time models of practical interest are non-minimum phase. We show that, for non-minimum phase plants, the Riccati equation with the parameter being zero has multiple non-negative definite solutions one of which is stabilizing. The stabilizing solution is then used to obtain an explicit expression of the sensitivity matrix achieved by the recovery procedure. Using the expression, we discuss the meaning of the LTR for non-minimum phase plants with direct feedthrough terms.

Journal

Citations (1)*help

See more

References(16)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top