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It is noted that for small sampling periods the superiority of the delta operator (DO) models over the shift operator (SO) concerns only recording of model coefficients and some analytical calculations. It is aslo noted that in the simultations, making it possible to obtain the time response of the output for any input, as well as in the model identification under limited measurement accuracy, the superiority of the DO over SO models, for small sampling periods, disappears. These observations have an essential meaning since the mentioned problems of simulation and identification are important for applications.
Czasopismo
Rocznik
Tom
Strony
411--421
Opis fizyczny
Bibliogr. 6 poz., rys.
Twórcy
autor
- Institute of Automatic Control, Silesian University of Technology, Akademicka 16, 44-100 Gliwice, Poland, gessing@ia.gliwice.edu.pl
Bibliografia
- [1] A. O. GELFOND: Calculation of finite differences. Gortechizdat, Moscow, 1952, (in Russian).
- [2] R. GESSING: Word length of pulse transfer function for small sampling periods. IEEE Trans. on Automatic Control, 44(9), (1999), 1760-1764.
- [3] R. GESSING: Whether the delta operator models are really better for small sampling periods. Preprints of the XV IFAC World Congress, Barcelona, (2002), CDROM.
- [4] M. GEVERS and G. LI: Parametrizations in control, estimation and filtering problems. Springer Verlag, 1993.
- [5] G. C. GOODWIN, R. M. MIDDLETON and M. V. POOR: High speed digital signal processing and control. Proc. of the IEEE, 80(2), (1992), 240-259.
- [6] R. M. MIDDLETON and G. C. GOODWIN: Digital control and estimation, a unified approach. Prentice hall, NJ, 1990.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BSW3-0031-0003