Epstein, Michael and Shi, Ling and Murray, Richard M. (2007) Estimation Schemes for Networked Control Systems Using UDP-Like Communication. In: 46th IEEE Conference on Decision and Control. IEEE , Piscataway, NJ, pp. 3945-3951. ISBN 978-1-4244-1497-0 http://resolver.caltech.edu/CaltechAUTHORS:20100826-114646843
- Published Version
See Usage Policy.
Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20100826-114646843
In this work we consider a class of networked control systems (NCS) when the control signal is sent to the plant via a UDP-like communication protocol, the controller sends a communication packet to the plant across a lossy network but the controller does not receive any acknowledgement signal indicating the status of reception/delivery of the control packet. Standard observer based estimators assume the estimator has knowledge of what control signal is applied to the plant, but under the UDP-like communication scheme the estimator does not know what control is applied. Continuing previous work, we present a simple estimation algorithm consisting of a state estimator and mode observer. For single input systems we can add an extra control signal that guarantees recovery of the fate of the control packet. Using a modified state feedback with the added input we can guarantee the estimation error is bounded as is the expected value of the state. This extra input is removed and sufficient conditions on the system properties are given to assure the estimation remain bounded. Comparisons are made between the algorithm presented and the method of unknown input observer. Simulations are provided to demonstrate the algorithm.
|Item Type:||Book Section|
|Additional Information:||© 2007 IEEE.|
|Other Numbering System:|
|Official Citation:||Epstein, M.; Ling Shi; Murray, R.M.; , "Estimation schemes for networked control systems using UDP-like communication," Decision and Control, 2007 46th IEEE Conference on , vol., no., pp.3945-3951, 12-14 Dec. 2007 doi: 10.1109/CDC.2007.4434841 URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4434841&isnumber=4434000|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Jason Perez|
|Deposited On:||26 Aug 2010 21:43|
|Last Modified:||26 Dec 2012 12:21|
Repository Staff Only: item control page