Stochastic predictive control under intermittent observations and unreliable actions. (August 2020)

• Record Type: Journal Article
• Authors: Mishra, Prabhat K.; Chatterjee, Debasish; Quevedo, Daniel E.
• Is Part Of: Automatica. Volume 118(2020)
• Publication Date: 2020-08
• Subjects: Stochastic control -- Predictive control -- Noisy channels -- Networked systems -- Optimal estimation -- Recursive approaches; Automatic control -- Periodicals; Automation -- Periodicals; 629.805
• DOI: 10.1016/j.automatica.2020.109012
• Languages: English
• ISSNs: 0005-1098

Abstract

Abstract: We propose a provably stabilizing and tractable approach for control of constrained linear systems under intermittent observations and unreliable transmissions of control commands. A smart sensor equipped with a Kalman filter is employed for the estimation of the states from incomplete and corrupt measurements, and an estimator at the controller side optimally feeds the intermittently received sensor data to the controller. The remote controller iteratively solves constrained stochastic optimal control problems and transmits the control commands according to a carefully designed transmission protocol through an unreliable channel. We present a (globally) recursively feasible quadratic program, which is solved online to yield a stabilizing controller for Lyapunov stable linear time invariant systems under any positive bound on control values and any non-zero transmission probabilities of Bernoulli channels.