An algorithm for computationally efficient digital implementation of LTI controllers Conference Paper

abstract

• In this paper we present an algorithm for computationally efficient digital implementation of linear time invariant controllers. The algorithm transforms a linear time invariant controller into a periodically time varying system, which can be digitally implemented in a computationally efficient manner. This is achieved by first decomposing the controller into a dual rate system. A scheduling policy is adopted that spreads the computation, required to update the states of the slower system, over a time horizon. This reduces the total number of states updated at a given time step and hence the computational overhead. A theoretical framework is also developed to analyse the effect of this transformation on the closed-loop stability performance. The theoretical analysis framework relies on multi-rate filter bank theory and lifting techinique used in the analysis of multi-rate control systems.

name of conference

• Proceedings of the 2003 American Control Conference, 2003.

authors

• Bhattacharya, Raktim

published proceedings

• PROCEEDINGS OF THE 2003 AMERICAN CONTROL CONFERENCE, VOLS 1-6

author list (cited authors)

• Bhattacharya, R., & Balas, G. J.

citation count

• 1

complete list of authors

• Bhattacharya, R||Balas, GJ

publication date

• January 2003

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• Proceedings of the ... American Control Conference. American Control Conference  Journal

keywords

• Networking And Information Technology R&d

Digital Object Identifier (DOI)

• 10.1109/acc.2003.1239745

International Standard Book Number (ISBN) 10

• 0-7803-7896-2

start page

• 1165

end page

• 1170

volume

• 2

URL

• http%3A%2F%2Fdx.doi.org%2F10.1109%2Facc.2003.1239745