A, B, C = state-space matrices a = acceleration due to linear-quadratic-regulatorand artificial-potential-field-determined control effort aAPF = acceleration due to artificial-potential-fielddetermined control effort aLQR = acceleration due to linear-quadratic-regulatordetermined control effort am = maximum acceleration aobs = acceleration of chaser spacecraft toward an obstacle ax;y;z = accele...

3 Quadratic Optimal Control 5 3.1 Linear Quadratic Optimal State Regulator Design . . . . . . . . . . . . . . . . . 6 3.2 Linear Quadratic Optimal Output Regulator Design . . . . . . . . . . . . . . . . 9 3.3 Stability of LQ controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.4 Linear Quadratic Gaussian (LQG) Control . . . . . . . . . . . . . . . . . . . . . 11 3.4.1 S...

As the conventional control system is a controller that controls or regulates dynamics of any other process. From time to time, this may not behave appropriately online; because many factors like some variation in process itself unexpected changes environment, even undefined parameters model. To overcome problem above, an adaptive designed and implemented. This paper discusses design for ball b...

The purpose of this paper is to present a new robust strategy in controlling the active suspension system. The strategy utilized the proportional-integral sliding mode control scheme. A quarter-car model is used in the study and the performance of the controller is compared to the linear quadratic regulator and with the existing passive suspension system. A simulation study is performed to prov...

In this note, we first show that Theorem 2 in the above paper is incorrect. Then, we also show that Theorem 1 is not enough to support the claim in the above paper that the proportional-integral sliding mode control method is more robust than the linear quadratic regulator method when applying on the active suspension system with mismatched uncertainties. © 2006 Published by Elsevier B.V.

in this paper, the consequences of well-known characteristics of near-fault ground motions, forward directivity and fling step, on the seismic response control is investigated. an integrated fuzzy rule-based control strategy for building structures incorporated with semi active friction damping system with amplifying braces (fdsab) is developed. the membership functions and fuzzy rules of fuzzy...

This paper deals with the position control of robot manipulators. Proposed is a simple class of robot regulators consisting of a linear proportional–derivative (PD) feedback plus an integral action of a nonlinear function of position errors. By using Lyapunov’s direct method and LaSalle’s invariance principle, the authors characterize a class of such nonlinear functions, and they provide explic...