Wang, Wei-Min; Guo, Shu-Mei; Shieh, Leang-San Discretization of cascaded continuous-time controllers for state and input delayed systems. (English) Zbl 1080.93632 Int. J. Syst. Sci. 31, No. 3, 287-296 (2000). Summary: This paper presents a new interpolation method that utilizes a Newton backward interpolation formula for the discretization of a continuous-time system with state and input delays. Also, a new output feedback state-matching digital redesign method, which utilizes the Newton extrapolation formula and the Chebyshev quadrature formula, enables the discretization of a cascaded continuous-time controller or filter for the continuous-time systems with delayed input and states, without employing a discrete time observer. The proposed method provides an alternative methodology for indirect digital design of a continuous-time unity-output feedback delayed system and enables us to implement accurately and effectively an existing or pre-designed cascaded analogue controller or filter via a digital controller. Cited in 4 Documents MSC: 93-XX Systems theory; control PDFBibTeX XMLCite \textit{W.-M. Wang} et al., Int. J. Syst. Sci. 31, No. 3, 287--296 (2000; Zbl 1080.93632) Full Text: DOI