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Open AccessProceedings ArticleDOI

Control of Linear Systems by Output Proportional Plus Derivative Feedback

TLDR
In this article, a control design procedure for linear time invariant systems using output proportional plus derivative feedback is presented, which has been applied to obtain an improved autopilot for the lateral dynamics of an L1011 aircraft.
Abstract
This paper presents a control design procedure for linear time invariant systems using output proportional plus derivative feedback. The traditional linear quadratic performance index is used with additional terms to penalize disturbance and noise response and eigenvalue and response sensitivities. The sensitivity terms represent measures of stability robustness. It is shown that the derivative feedback improves the measure of performance. This design procedure has been applied to obtain an improved autopilot for the lateral dynamics of an L1011 aircraft.

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Citations
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Journal Article

Dynamic control modification techniques in teleoperation of a flexible manipulator

TL;DR: In this article, an input shaping method is proposed to reduce the end-point vibration of a large, teleoperated manipulator while preserving the usefulness of the system motion, which is shown to increase the residual vibration in certain situations when the system parameters are not accurately specified.

Dynamic control modification techniques in teleoperation of a flexible manipulator. M.S. Thesis

TL;DR: In this paper, an input shaping method is proposed to reduce the end-point vibration of a large, teleoperated manipulator while preserving the usefulness of the system motion, which is shown to increase the residual vibration in certain situations when the system parameters are not accurately specified.
References
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Journal ArticleDOI

Optimal limited state variable feedback controllers for linear systems

TL;DR: In this article, the problem of designing compensators, the dimensions of which are fixed a priori, for linear systems is considered, and two types of compensators are considered: static (gain only) compensators which operate directly upon the output signals to generate the controls, and dynamic compensators of fixed dimension.
Journal ArticleDOI

Pole assignment with minimum eigenvalue sensitivity to plant parameter variations

TL;DR: In this paper, a procedure for designing a constant gain feedback matrix which assigns the closed-loop poles of a linear time-invariant multivariable system to desired locations and at the same time minimizes the sensitivity of these poles to variations in the parameters of the plant is described.
Journal ArticleDOI

A homotopy approach to the feedback stabilization of linear systems

TL;DR: In this paper, a closed-form necessary and sufficient condition for the stabilizability of linear time-invariant systems by a controller of chosen order is established by solving a constrained optimization problem and results in a system of nonlinear matrix equations.
Journal ArticleDOI

Minimal root sensitivity in linear systems

TL;DR: In this paper, a lower bound is derived for root sensitivity and necessary and sufficient conditions are given for achieving this minimum, and an optimal output feedback control problem is discussed which penalizes an index related to root sensitivity.
Journal ArticleDOI

Conditions for minimizing the norm sensitivity of characteristic roots

TL;DR: In this paper, conditions for minimizing the sensitivity norms of a characteristic root of an n by n real matrix with respect to the elements of the matrix have been obtained for all n and involve simple algebraic properties of the matrices.
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