Multi-dimensional robust tracking control integrating input-constrained
extended model predictive static programming with receding horizon
control strategy
Abstract
To address the multi-dimensional tracking control problem with control
saturation and uncertainties, a receding horizon control (RHC) based
scheme is explored. The RHC guarantees the instructions change softly
and smoothly with controllable transition time by utilizing the rolling
window optimization mode, whereas its practical application still
suffers from the computational efficiency limitation and stability
problem in presence of disturbances. To reduce the computational
complexity of RHC, a rolling optimization approach is proposed for
tackling the input-constrained nominal RHC problem by incorporating a
regularization approach, spectral-form discretization and quadrature
collocation to extend the model predictive static programming technique.
To further guarantee the anti-interference ability, an input-constrained
state feedback control based on the linear-matrix-inequality (LMI)
theory is proposed as the ancillary correction control of RHC for
restricting the disturbed states motion caused by exogenous disturbances
in an admissible invariant set. Finally, the robust stability of the
whole closed-loop system is theoretically illustrated. Applying the
proposed method into the multi-constrained midcourse tracking guidance
scenario of an anti-aircraft missile, the comparative simulations
demonstrate its marked superiorities in computational performance and
robustness.