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H control for networked systems with random communication delays

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4 Author(s)
Fuwen Yang ; Dept. of Electr. Eng., Fuzhou Univ., China ; Zidong Wang ; Hung, Y.S. ; Gani, M.

This note is concerned with a new controller design problem for networked systems with random communication delays. Two kinds of random delays are simultaneously considered: i) from the controller to the plant, and ii) from the sensor to the controller, via a limited bandwidth communication channel. The random delays are modeled as a linear function of the stochastic variable satisfying Bernoulli random binary distribution. The observer-based controller is designed to exponentially stabilize the networked system in the sense of mean square, and also achieve the prescribed H disturbance attenuation level. The addressed controller design problem is transformed to an auxiliary convex optimization problem, which can be solved by a linear matrix inequality (LMI) approach. An illustrative example is provided to show the applicability of the proposed method.

Published in:

Automatic Control, IEEE Transactions on  (Volume:51 ,  Issue: 3 )