Optimal linear state estimator with multiple packet dropouts

Yan Liang, Tongwen Chen, Quan Pan

Research output: Contribution to journalArticlepeer-review

122 Scopus citations

Abstract

This technical note is concerned with the optimal linear estimation problem in the presence of multiple packet dropouts in both sensor-to-controller and controller-to-actuator channels. The considered stochastic packet dropouts are independent and Bernoulli distributed. Based on a linear packet dropout model with stochastic parameters, a linear-minimum-variance (LMV) filter is proposed using the orthogonality principle. A sufficient condition for convergence of the steady-state LMV filter under a dc controller output is also given. Simulation results show the effectiveness of the proposed filter.

Original languageEnglish
Article number5422732
Pages (from-to)1428-1433
Number of pages6
JournalIEEE Transactions on Automatic Control
Volume55
Issue number6
DOIs
StatePublished - Jun 2010
Externally publishedYes

Keywords

  • Networked control systems
  • Optimal filtering
  • Packet dropout
  • Stochastic systems

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