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Josef Zehetner, Johann Reger, Martin Horn

Realtime Implementation of an Algebraic Derivative Estimation Scheme

Keywords: operational calculus, realtime system, Matlab, Simulink, S-Function

In this article, a realtime implementation of an algebraic method for estimating the time derivatives of measured time signals is presented. Based on a Taylor series expansion of the time signal, elementary techniques from operational calculus are used for deriving estimator formulas for time derivatives of arbitrary order. These formulas may be evaluated very efficiently, in realtime. This task is solved by Matlab/Simulink by means of which resorting to code generation libraries and target link compilers realtime routines can easily be transferred to different target architectures. A laboratory setup demonstrates the applicability and impressing performance in practice.

at – Automatisierungstechnik, Oldenbourg Wissenschaftsverlag

Print ISSN: 0178-2312
Volume: 55, 11/2007
Pages: 553 - 560

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