## Control Theory Seminar

### Thursday, September 27th, 2018

**Time:** 9:00-10:30 a.m ** Place:** Jeffery Hall 319

**Speaker:** Christoph Kawan (University of Passau)

**Title:** Robust estimation under information constraints for deterministic non-linear systems

**Abstract:** A fundamental problem in information-based control is to estimate the state of a dynamical system using information sent through a rate-limited channel. In this talk, we explain the concept of restoration entropy, introduced by Matveev and Pogromsky, which characterizes the smallest channel capacity above which a robust coding and estimation policy with arbitrarily small estimation error can be implemented. In particular, we provide a characterization of restoration entropy that involves no asymptotic quantities and leads to nearly optimal policies.

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