On the Convergence and Stability of a Robust State Estimator | IEEE Journals & Magazine | IEEE Xplore

On the Convergence and Stability of a Robust State Estimator


Abstract:

Convergence and stability of the robust state estimator obtained in is reinvestigated in this technical note. Some new relations have been established for matrix updates ...Show More

Abstract:

Convergence and stability of the robust state estimator obtained in is reinvestigated in this technical note. Some new relations have been established for matrix updates in the recursive state estimation. It is proved that under certain stabilizability and detectability conditions, this robust estimator converges to a stable time invariant system, provided that plant nominal parameters are time invariant and the filter design parameter is fixed. These results are consistent with existent ones, but different from them at the point that there are no orthogonality constraints on uncertainty related system matrices, and therefore widen theoretical guarantees for the effectiveness of the estimation procedure.
Published in: IEEE Transactions on Automatic Control ( Volume: 55, Issue: 3, March 2010)
Page(s): 708 - 714
Date of Publication: 19 January 2010

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