Disturbance attenuation for constrained discrete-time systems via receding horizon controls

In this paper, we propose new receding horizon H_∞ control (RHHC) schemes for linear input-constrained discrete time-invariant systems with disturbances. The proposed control schemes are based on the dynamic game problem of a finite-horizon cost function with a fixed finite terminal weighting matrix and a one-horizon cost function with time-varying finite terminal weighting matrices, respectively. We show that the resulting RHHCs guarantee closed-loop stability in the absence of disturbances and H_∞ norm bound for 2-norm bounded disturbances. We also show that the proposed schemes can easily be implemented via linear matrix inequality (LMI) optimization. We illustrate the effectiveness of the proposed schemes through simulations.