As an emerging effective approach to nonlinear robust control simplex sliding mode control demonstrates some attractive features not possessed by the conventional sliding mode control method from both theoretical and practical points of view. However no systematic approach is currently available for computing the simplex control vectors in nonlinear sliding mode control. In this paper, chaos-based optimization is exploited so as to develop a systematic approach to seeking the simplex ...
This report presents a new digital redesign method for robust control of a sampled data uncertain system using an observer based digital controller. The multiple segment trapezoidal rule together with interval arithmetic is utilized to find a digital interval model of the original continuous time uncertain system. A dual concept of the digital interval modeling which captures the intersample states of the original continuous time uncertain system is used to ...
The newly developed dominant-data matching method has been successfully extended to design a digital pitch control system of a semiactive terminal homing missile system. As a result, the designed digital controller can be implemented on a microprocessor. Also, a direct-decoupling method for mulitvariable control system designs has been developed and modified. This newly developed simple and practical method can be readily applied by a practicing control engineer for coupled high-order ...
A high-order stabilization filter was formerly designed to stabilize an unstable pitch control system of a terminal homing missile system. In this report, a new dominant-data matching method is presented to redesign the high order stabilization filter. Using this new method several reduced order filters are obtained. As a result, the cost of implementation is reduced and the reliability is increased. An algebraic method is also applied to redesign the ...
Missile systems are typical multivariable control systems with few available practical approaches in the frequency domain. A frequency approach is developed in this research which makes use of an algebraic procedure for the analysis and synthesis of multivariable control systems. The newly developed matrix Cauer forms are used as bases for the investigation. The topics involved in this research can be outlined as follows: (1) the state-of-the-art is reviewed and ...
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