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Optimal H2 Filtering in Networked Control Systems With Multiple Packet Dropout

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3 Author(s)
Sahebsara, M. ; Alberta Univ., Edmonton ; Tongwen Chen ; Shah, S.L.

This note studies the problem of optimal H2 filtering in networked control systems (NCSs) with multiple packet dropout. A new formulation is employed to model the multiple packet dropout case, where the random dropout rate is transformed into a stochastic parameter in the system's representation. By generalization of the H2-norm definition, new relations for the stochastic -norm of a linear discrete-time stochastic parameter system represented in the state-space form are derived. The stochastic H2-norm of the estimation error is used as a criterion for filter design in the NCS framework. A set of linear matrix inequalities (LMIs) is given to solve the corresponding filter design problem. A simulation example supports the theory.

Published in:

Automatic Control, IEEE Transactions on  (Volume:52 ,  Issue: 8 )