Donchin, "Correlations in state space can cause sub-optimal adaptation of optimal feedback control
models," Journal of Computational Neuroscience, vol.
Once we are able to construct the function $, all other necessary information such as the optimal feedback control
law, the optimal cost for the given initial state and the optimal trajectory can be determined.
The novelty lies in avoiding direct implementation of complex nonlinear optimal feedback control
laws, in which plant modelling uncertainties could cause unacceptable suboptimal performance or even instability, by instead implementing vector controlled drives with forced dynamic control laws yielding known linear closed loop dynamics, together with a precompensator eliminating dynamic lag, enabling a precomputed easily generated near-optimal reference input function to be accurately followed, thereby forcing the system to follow a near-optimal state trajectory.
Vincent and Morgan  utilized Lyapunov optimal feedback control
method to derive a nonlinear guidance law.
Dias Rodrigues, "Active vibration control of smart piezoelectric beams: comparison of classical and optimal feedback control
strategies," Computers and Structures, vol.
 have shown that the stochastic LQR problem is well posed if there are solutions to the Riccati equation and then optimal feedback control
can be obtained.
The optimal feedback control
, velocity feedback control , fuzzy logic control , and the [H.sub.[infinity]] control  were usually employed in active vibration control (AVC).
Our explanation of this phenomenon follows from an intuitive property of optimal feedback control
that we call the "minimal intervention" principle: deviations from the average trajectory are corrected only when they interfere with task performance [E.
Topics include the constrained optimal feedback control
of systems governed by large differential algebraic equations , a stabilizing real-time implementation of nonlinear model prediction control, numerical feedback controller design, a least-squares finite element method, a collection of fast PDE-constrained optimization solvers, recommendations for reduced-order modeling and a range of applications.
Wang, "Optimal feedback control
for linear systems with input delays revisited," Journal of Optimization Theory and Applications, vol.
Banks, "Global optimal feedback control
for general nonlinear systems with nonquadratic performance criteria," Systems and Control Letters, vol.
Lewis, Optimal Feedback Control
: Practical Performance and Design Algorithms for Industrial and Aerospace Systems, UTA Research Institute The University of Texas at Arlington, USA, 2012.