Browsing by Subject "Time varying control systems"
Now showing items 1-13 of 13
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Article
Adaptive control of a class of slowly time varying systems with modeling uncertainties
(2005)In a recent work, a new linear adaptive controller based on certainty-equivalence and backstepping design, which promises a level of transient and asymptotic performance comparable to that of the tuning functions adaptive ...
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Article
Backstepping Control of Linear Time-Varying Systems with Known and Unknown Parameters
(2003)The backstepping control design procedure has been used to develop stabilizing controllers for time invariant plants that are linear or belong to some class of nonlinear systems. The use of such a procedure to design ...
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Conference Object
Estimation and identification of time-varying long-term fading wireless channels with application to power control
(Institute of Electrical and Electronics Engineers Inc., 2007)This paper is concerned with modeling of time-varying wireless fading channels, parameter estimation, identification, and optimal power control from received signal measurements. Wireless channels are represented by ...
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Conference Object
A new robust adaptive control scheme for linear time varying plants
(2002)In a recent work, a new linear adaptive controller based on certainty-equivalence and backstepping design, which promises a level of transient and asymptotic performance comparable to that of the tuning functions adaptive ...
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Conference Object
Non-identifier based adaptive control scheme with guaranteed stability
(2006)In this paper, we investigate a non-identifier based adaptive control scheme for single-input single-output (SISO) plants. The overall adaptive control system can be viewed as a feedback interconnection of a SISO plant, a ...
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Conference Object
On optimal performance for linear time-varying systems
(2004)In this paper we consider the optimal disturbance attenuation problem and robustness for linear time-varying (LTV) systems. This problem corresponds to the standard optimal H ∞ problem for LTI systems. The problem is ...
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Article
Robust adaptive attenuation of unknown periodic disturbances in uncertain multi-input multi-output systems
(2016)In high-performance high-accuracy systems, the attenuation of vibrational disturbances is essential. In this paper, we design and analyze a robust output-feedback adaptive control scheme to attenuate noise-corrupted ...
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Conference Object
Robust adaptive sliding control of linearizable systems
(2001)A switching adaptive control algorithm based on a sliding mode method is proposed for a class of single-input, single-output nonlinear systems with unknown dynamics. The plant is assumed to be linear-in-the-control input ...
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Conference Object
Stability and performance of nonlinear robust adaptive control
(IEEE, 1995)Recently, a new class of adaptive control schemes, motivated from nonlinear systems theory, has been proposed for minimum phase linear time invariant plants. Under certain assumptions on the plant transfer function, these ...
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Conference Object
Stochastic models for short-term multipath fading channels: chi-square and Ornstein-Uhlenbeck processes
(IEEE, 1999)This paper discusses the use of stochastic differential equations to model signal envelope variations over areas, which are subject to short-term fading effects. The short-term fading effects are modeled using Ornstein-Uhlenbeck ...
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Conference Object
A switching controller for multivariable LTI systems with known and unknown parameters
(2002)The design of adaptive controllers for multi-input multi-output (MIMO) linear time invariant (LTI) systems is challenging due to the high dimension and parameterization issues associated with MIMO systems. In this paper ...
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Conference Object
A Systems Approach to Channel Equalization
(2003)In this paper we present a control theoretic frame-work for channel equalization. Channel equalization methods are used to mitigate the effects of inter-symbol interference (ISI). Traditional methods, maximize the signal ...
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Conference Object
Time-varying power-limited preprocessing for perfect reconstruction of binary signals
(2006)In this paper we consider a deterministic worst-case framework for perfect reconstruction of discrete data transmission through a dispersive communication channel. More specifically, we extend our previous work to capture ...