Title
Architectures and coder design for networked control systems
Abstract
In networked control systems (NCSs) achievable performance is limited by the communication links employed to transmit signals in the loop. In the present work, we characterise LTI coding systems which optimise performance for various NCS architectures. We study NCSs where the communication link is situated between plant output and controller, and NCSs where the communication link is located between controller and actuator. Furthermore, we present a novel NCS architecture, which is based upon the Youla parameterisation. We show that, which of these architectures gives best performance depends, inter alia, upon characteristics of a related non-networked design, plant disturbances and reference signal. A key aspect of our work, resides in the utilisation of fixed signal-to-noise ratio channel models which give rise to parsimonious designs, where channel utilisation is kept low. The results are verified with simulations utilising bit-rate limited channels.
Year
DOI
Venue
2008
10.1016/j.automatica.2007.05.015
Automatica
Keywords
Field
DocType
Networked control systems,Noisy channels,Coding schemes,Minimum variance control,Quantisation
LTI system theory,Control theory,Data transmission,Control theory,Signal-to-noise ratio,Communication channel,Coding (social sciences),Control engineering,Control system,Mathematics,Actuator
Journal
Volume
Issue
ISSN
44
1
0005-1098
Citations 
PageRank 
References 
24
1.14
19
Authors
3
Name
Order
Citations
PageRank
Graham C. Goodwin1899172.24
Daniel E. Quevedo21393100.60
Eduardo I. Silva319717.48