Control in Computationally Constrained Environments Academic Article

abstract

• In this paper, we present a novel algorithm for implementing linear time invariant controllers in computationally constrained environments. The algorithm transforms a linear time invariant controller into a periodically time varying system, which is shown to be implemented in a computationally efficient manner. This is achieved by first decomposing the controller into a dual rate system. A scheduling policy is then adopted that interlaces the computation associated with the two systems. The interlaced dual rate implementation of the controller algorithm significantly reduces the computational overhead at each time step. A theoretical framework is developed to analyze the effect of this model of computation on the closed-loop stability performance. The paper concludes with an example based on a flight control algorithm designed for the Boeing 737-100 Transport System Research Vehicle (TSRV) linear longitudinal motion model. 2009 IEEE.

authors

• Bhattacharya, Raktim

published proceedings

• IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY

author list (cited authors)

• Bhattacharya, R., & Balas, G. J.

citation count

• 7

complete list of authors

• Bhattacharya, Raktim||Balas, Gary J

publication date

• May 2009

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• IEEE Transactions on Control Systems Technology  Journal

keywords

• Interlaced Computation
• Multi-rate Control
• Real-time Computation

Digital Object Identifier (DOI)

• 10.1109/TCST.2008.2001919

start page

• 589

end page

• 599

volume

• 17

issue

• 3

URL

• http://dx.doi.org/10.1109/tcst.2008.2001919