Jorge Cortés
Professor
Cymer Corporation Endowed Chair
Event-triggered control under time-varying rates and channel blackouts
P. Tallapragada, M. Franceschetti, J. Cortés
IFAC Journal of Systems and Control 9 (2019), 100064
Abstract
This paper studies event-triggered stabilization of linear
time-invariant systems over time-varying rate-limited
communication channels. We explicitly account for the possibility
of channel blackouts, i.e., intervals of time when the
communication channel is unavailable for feedback. Assuming prior
knowledge of the channel evolution, we study the data capacity,
which is the maximum total number of bits that could be
communicated over a given time interval, and provide an efficient
real-time algorithm to lower bound it for a time-slotted model of
channel evolution. Building on these results, we design an
event-triggering strategy that guarantees Zeno-free, exponential
stabilization at a desired convergence rate even in the presence
of intermittent channel blackouts. The contributions are the
notion of channel blackouts, the effective control despite their
occurrence, and the analysis and quantification of the data
capacity for a class of time-varying continuous-time
channels. Various simulations illustrate the results.
pdf
Mechanical and Aerospace Engineering,
University of California, San Diego
9500 Gilman Dr,
La Jolla, California, 92093-0411
Ph: 1-858-822-7930
Fax: 1-858-822-3107
cortes at ucsd.edu
Skype id:
jorgilliyo