Browsing Electrical & Computer Engineering Faculty Publications by Title
Now showing items 135154 of 229

[20120407] Observerbased controller synthesis for modelbased fuzzy systems via linear matrix inequalities
In this chapter, we extend some recent results regarding the stability of continuoustime and discretetime TakagiSugeno (TS) fuzzy systems to the case where the system’s states are not available for measurement. We ... 
[20120329] On Load balancing in distributed systems with large time delays: Theory and experiment
In a distributed computing environment with a high communication cost, limiting the number of balancing instants results in a better performance than the case where load balancing is executed continuously. Therefore, finding ... 
[20120424] On Robustness Analysis in the Control of Nonlinear Systems
This paper deals with the class of nonlinear systems described by the equation M(q(t))q(t) = f(t)  N(q(t),qÂ¿(t)) with f(t) a control input. We employ a simple method of control design which has two stages. First, a global ... 
[20120413] On The Computational Complexity Of The Manufacturing Job Shop And Reentrant Flow Line
This paper presents a comparison study of the computational complexity of the general job shop protocol and the flow line protocol in a flexible manufacturing system. It is shown that a certain representative problem of ... 
[20120412] On the control of a high power backwardwave oscillator using quantifier elimination methods
This paper presents an experimental/theoretical study of methods to identify and control a repetitivelypulsed high power microwave source. A neural network was used to model the system and quantifier elimination (QE) ... 
[20120412] On the design of nonfragile compensators via symbolic quantifier elimination
In this paper symbolic quantifier elimination methods are used to explore the fragility of feedback compensators, and to design feedback systems with nonfragile compensators. A compensator is said to be fragile if given ... 
[20120426] ON THE FRAGILITY OF HIGHDIMENSIONAL CONTROLLERS
In this paper we study the fragility of controllers designed to optimize some performance indices. We trace the fragility problem to the dimension of the resulting controllers, and use results from highdimensional geometry ... 
[20120426] On the Relative Degree of Simultaneously Stabilizing Controllers
In this brief paper 1 we present new necessary and sufficient conditions on the controller for the existence of a single controller to stabilize a set of n SISO plants: P1; P2; :::; Pn. As is well known this is equivalent ... 
[20120419] On the Robust Control of Uncertain Nonlinear Systems
In this paper we study the problem of controlling uncertain nonlinear systems. The uncertainty is considered to be dynamic and additive, and the nominal system is assumed to be feedbacklinearizable. It is shown that the ... 
[20120407] On the rotating surge and stall and the polar control method
In this paper, the polar controller is applied to the threestate, onemode MooreGreitzer Compressor model. A benchmark is first established with a backstepping controller. The polar control method is then explained, and ... 
[20120412] On the stability of LAPART
In this paper we show how the stability of a LAPART neural network can be deduced as a result of a general theorem on the input/output stability of nonlinear systems. This result gives conditions on how to choose certain ... 
[20120407] Optimal discretetime control for nonlinear cascade systems
In this paper we develop an optimalitybased framework for designing controllers for discretetime nonlinear cascade systems. Specifically, using a nonlinearnonquadratic optimal control framework we develop a family of ... 
[20120320] Optimization and complexity reduction of switchreconfigured antennas using graph models
This letter addresses the optimization and complexity reduction of switchreconfigured antennas. A new optimization technique based on graph models is investigated. This technique is used to minimize the redundancy in a ... 
[20120406] Overview of intense beamdriven relativistic backward wave oscillators and their use in high power microwave effects studies
We propose mathematical performance measures by which the robustness, imperceptibility and information content of various watermarking methods could be measured. These measures rely in the notion of equivalence in the ... 
[20120426] An Overview of QuasiMonte Carlo Methods in Control Systems
Many control problems are so complex that analytic techniques fail to solve them [2]. Furthermore, even when analytic solutions are available, they may be computationally costly [2] and generally result in very highorder ... 
[20120407] Performance measures for image watermarking schemes
In this paper we propose performance measures and provide a description of the application of digital watermarking for use in copyright protection of digital images. The watermarking process we consider involves embedding ... 
[20120330] Performance of Game Theoretic Power Control Algorithms for Wireless Data in Fading Channels
An efficient use of the radio resources in wireless communications presents a fundamental challenge. While power is one of the most important radio resources, and its control has been studied extensively for voice ... 
[20120426] Performance of Game Theoretic Power Control Algorithms forWireless Data in Fast Flat Fading Channels
We consider a gametheoretic power control algorithm for wireless data realistic channels. We study the performance of the algorithm for wireless data in the fast, flatfading channel mobile users encounter in accessing ... 
[20120413] Phaseconvex arcs in root space and their application to robust SPR problem
This paper considers the problem of identifying regions in the complexplane, such that the phase of polynomials having roots in those regions, is bounded by that of a few extreme polynomials. Applications of the results ... 
[20120412] Polynomial solutions for simultaneous stabilization
In this paper, we present a new necessary and sufficient condition for simultaneous stabilization and new sufficient conditions for the existence of a simultaneously stabilizing controller, both derived from a polynomial ...