A Note on Sampled-Data Observers

2019/11/18 by Iasson Karafyllis, Karafyllis, Iasson, Tarek Ahmed-Ali +3
Computer Science · Engineering · Mathematics · #FOS: Electrical engineering #FOS: Mathematics #Optimization and Control (math.OC) #Systems and Control (eess.SY) #cs.SY #eess.SY #electronic engineering #information engineering #math.OC

paper · pdf · doi:10.48550/arxiv.1911.07601

14 pages, 1 figure, submitted to IEEE TAC for possible publication

arxiv created 2019/11/18 · arxiv updated 2019/11/19

Abstract

We present a new approach for deriving sampled-data observers from continuous-time observers that feature an Input-to-Output Stability property with respect to the output measurement noise and exponential convergence in the noiseless case. The design approach applies to a wide class of systems and yields sampled-data observers that inherit all performance characteristics of the underlying continuous-time observers. The main component of the proposed sampled-data observer is a novel output predictor that encompasses both inter-sample predictors and ZOH-predictors.

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