The software described in this document is furnished under a license agreement. The software may be used or copied only under the terms of the license agreement. No part of this manual may be photocopied or reproduced in any form without prior written consent from The MathWorks, Inc. have only the rights specified in the license under which the commercial… (More)
— This paper describes the new MATLAB Robust Control Toolbox which combines the original MATLAB Robust Control Toolbox, LMI and the µ-Analysis and Synthesis Toolboxes. The toolbox introduces an uncertain data structure and new robust-ness analysis and synthesis algorithms. The uncertain data structure is based on linear fractional transformations and forms… (More)
This paper describes the Modeling and Control Synthesis (MACSYN) Toolbox, which is an integrated software package for system identification, modeling, and robust control. 'Using MACSYN, the plant is identified in state-space form, and modeling errors are characterized in terms of norn~-bounded weighting functions in a form that can be used with modern… (More)
The software described in this document is furnished under a license agreement. The software may be used or copied only under the terms of the license agreement. No part of this manual may be photocopied or reproduced in any form without prior written consent from The MathWorks, Inc. FEDERAL ACQUISITION: This provision applies to all acquisitions of the… (More)
P (d=dt)w gives 3u = 4((d 2 =dt 2) + (d=dt) + 1)y as the corresponding controller. The significance of the results of this section is that if the measurements are noise-free, then there is no harm, in fact, it can be helpful, to differentiate the measurements and achieve better disturbance attenuation. VI. CONCLUSION We proved an alternative and easily… (More)
The recently developed nonlinear ser-vomechanism theory is applied to the attitude control of large maneuvering spacecraft subject to sinusoidal disturbances and parametric uncertainties. Simulation shows signticant advantages of our attitude controller over the controller resulting from the feedback linearization approach. Future spacecraft present… (More)
This paper designs a fuzzy logic controller to suppress the vibrations of a large space antenna-like ground experimental structure located at the JPL/AF-PL Large Spacecraft Control Laboratory. This fuzzy logic controller provides a simple, yet robust, means to the vibration control of a highly uncertain structural system .
q'his paper presents a systematic method to design roljust colitrollem from experimental data so as to ensure that the cont,rollcr is robust with J espect to all plants which cannot be discounted based on the data (to within a specified statistical confidence). l'hc present paper extends previous multi variable results to the structured uncertainty case and… (More)