On the design of specific optimal controllers.
Stationary controller design for linear time varying control systems with state variables not always accessible for feedback
Murtuza, S.↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Comparisons of sensitivity improvement techniques for linear optimal control systems.
Sensitivity function in time domain defined for control system design
Kahne, S. J.↗
Study of a global search algorithm for optimal control.
Adaptive random search algorithm utilizing boundary cost-function hypersurfaces measurement to implement Pontryagin maximum principle, discussing hybrid computer use, iterative solution and convergence properties
Brocker, D. H.↗
Stochastic problems in optimal control
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Wonham, W. M.↗
Control optimization, stabilization and computer algorithms for space applications Status report no. 6, 1 Sep. - 28 Feb. 1969
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Source record↗
Global search algorithm for optimal control
Random-search algorithm employs local and global properties to solve two-point boundary value problem in Pontryagin maximum principle for either fixed or variable end-time problems. Mixed boundary value problem is transformed to an initial value problem. Mapping between initial and terminal values utilizes hybrid computer.
Brocker, D. H.↗
Optimal control problems as equivalent Lagrange problems
Transforming optical control problem into equivalent Lagrange problem in calculus of variations
Park, S. K.↗
A modified sweep method for control optimization
Modified sweep second-order variational method for solving two-point boundary value trajectory optimization problem
Colunga, D.↗
Sub-optimal control of discrete systems with bounded state and control variables
Suboptimal control of discrete input system with bounded state and control variables, developing algorithm for on-line computation
Boland, J. S., III↗
A modified sweep method for control optimization
Solution of trajectory optimization problems by calculus of variations, dynamic programming, and Pontryagin's Principle
Colunga, D.↗
Optimal control of supersonic inlets to minimize unstarts
Design and characteristics of supersonic inlet controls for minimizing inlet unstarts
Geyser, L. C.↗
Design of computational algorithms for optimal control by Hilbert space
Design of computational algorithms for optical control by Hilbert space methods, and involving cost function
Gruver, W. A., III↗
A survey of methods of feasible directions for the solution of optimal control problems.
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Polak, E.↗
An attainable sets approach to optimal control of functional differential equations with function space terminal conditions.
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Banks, H. T.↗
On a class of numerical methods with an adaptive integration subprocedure for optimal control problems
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Polak, E.↗
Optimal controller design for high performance aircraft undergoing large disturbance angles
An examination of two aircraft controller structures applicable to on-line implementation was conducted. The two controllers, a linear regulator model follower and an inner-product model follower, were applied to the lateral dynamics of the F8-C aircraft. For the purposes of this research effort, the lateral dynamics of the F8-C aircraft were considered. The controller designs were evaluated for four flight conditions. Additionally, effects of pilot input, rapid variation of flight condition and control surface rate and magnitude deflection limits were considered.
Rhoten, R. P.↗
Calculus of variations and mathematical theory of optimal control
A bibliography is presented of publications and reports resulting from the research project.
Sagan, H.↗
Control optimization of a lifting body entry problem by an improved and a modified method of perturbation function
A study of the solution problem of a complex entry optimization was studied. The problem was transformed into a two-point boundary value problem by using classical calculus of variation methods. Two perturbation methods were devised. These methods attempted to desensitize the contingency of the solution of this type of problem on the required initial co-state estimates. Also numerical results are presented for the optimal solution resulting from a number of different initial co-states estimates. The perturbation methods were compared. It is found that they are an improvement over existing methods.
Garcia, F., Jr.↗