Stochastic receding horizon control with output feedback and bounded controls

Model-Predictive Control 0209 industrial biotechnology Optimality 330 [INFO.INFO-TS] Computer Science [cs]/Signal and Image Processing [MATH.MATH-DS]Mathematics [math]/Dynamical Systems [math.DS] [MATH.MATH-DS] Mathematics [math]/Dynamical Systems [math.DS] Robust Optimization 02 engineering and technology 510 [SPI.AUTO]Engineering Sciences [physics]/Automatic Constrained control [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing 0203 mechanical engineering Constrained Control Predictive control Stochastic Control Policies [INFO.INFO-BI] Computer Science [cs]/Bioinformatics [q-bio.QM] [SPI.SIGNAL] Engineering Sciences [physics]/Signal and Image processing Systems [MATH.MATH-OC] Mathematics [math]/Optimization and Control [math.OC] State Estimation 004 Output feedback Predictive Control [SPI.AUTO] Engineering Sciences [physics]/Automatic Stochastic control Constraints Constrained control, Output feedback, Predictive control, State estimation, Stochastic control [MATH.MATH-OC]Mathematics [math]/Optimization and Control [math.OC] [INFO.INFO-BI]Computer Science [cs]/Bioinformatics [q-bio.QM] Stability [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing Output Feedback State State estimation
DOI: 10.1016/j.automatica.2011.09.048 Publication Date: 2011-10-25T05:24:58Z
ABSTRACT
We study the problem of receding horizon control for stochastic discrete-time systems with bounded control inputs and incomplete state information. Given a suitable choice of causal control policies, we first present a slight extension of the Kalman filter to estimate the state optimally in mean-square sense. We then show how to augment the underlying optimization problem with a negative drift-like constraint, yielding a second-order cone program to be solved periodically online. We prove that the receding horizon implementation of the resulting control policies renders the state of the overall system mean-square bounded under mild assumptions. We also discuss how some quantities required by the finite-horizon optimization problem can be computed off-line, thus reducing the on-line computation.
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