Results 251 to 260 of about 502,322 (291)
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On time‐varying cyclic delay diversity
European Transactions on Telecommunications, 2006AbstractCyclic delay diversity (CDD) was introduced in 2001 to obtain spatial diversity in an orthogonal frequency division multiplexing (OFDM) based transmission system. In contrast to space‐time codes, CDD introduces no additional effort at the receiver side, since CDD changes only the channel impulse response seen by the receiver by increasing the ...
Gerd Richter +3 more
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Optimal estimation of time-varying delay
ICASSP-88., International Conference on Acoustics, Speech, and Signal Processing, 2003The authors report on time-varying delay estimation in a multisource single direct acoustic path environment. The signals are stochastic nonstationary processes. The time delays are deterministic time-varying functions described by a finite dimensional vector theta of unknown parameters. The observation noise is spatially correlated.
I.M.G. Lourtie, J.M.F. Moura
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Stability of Lurie Time-Varying Systems with Time-Varying Delay Feedbacks
2018In this chapter, the stability problems of Lurie nonlinear system with time-varying plant and time-varying actuator under time-varying delay feedback are presented. First, absolute stability criteria, which we define as solvable matrix inequalities, are outlined by constructing a Lyapunov–Razumikhn functional.
Shuli Guo, Lina Han
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Stabilization of linear systems with time‐varying delays
International Journal of Robust and Nonlinear Control, 2012SUMMARYThis paper is concerned with the stability and stabilization problems for a class of time‐delayed systems, whose time‐varying delays are studied via Markovian approach. By separating the delay interval into several subintervals and by considering the inherent distribution of time‐varying delay, a new model is firstly developed.
Wang, Guoliang, Zhang, Qingling
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Stability of uncertain systems with time-varying delays
Fifth World Congress on Intelligent Control and Automation (IEEE Cat. No.04EX788), 2004This paper provides a new criterion for robust asymptotical stability of a class of uncertain systems with multiple time-varying delays and nonlinear uncertainties based on LaSalle theorem. Firstly, we gave a contractive invariant set for time-delay systems, and then we derived the condition in which the system would be attracted into this invariant ...
null Tang Meilan, null Liu Xing
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Teleoperation of Mobile Robots With Time-Varying Delay
IEEE Transactions on Robotics, 2006This paper proposes a stable control structure for the bilateral teleoperation of mobile robots. The proposed control structure includes a time-delay compensation placed on both the local and remote sites of the teleoperation system. To illustrate the performance and stability of the proposed control structure, experiences on a Pioneer 2DX mobile robot
Emanuel Slawiñski +2 more
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2009
Before we complete Part I of the book, on predictor feedback for linear systems, and before we move on to delay-adaptive control in Part II, we examine a somewhat related problem of linear (time-invariant) systems with time-varying input or output delays.
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Before we complete Part I of the book, on predictor feedback for linear systems, and before we move on to delay-adaptive control in Part II, we examine a somewhat related problem of linear (time-invariant) systems with time-varying input or output delays.
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Time-varying Razumikhin and Krasovskii stability theorems for time-varying delay systems
2016 Chinese Control and Decision Conference (CCDC), 2016The main results of the paper are generalizations of the Razumikhin and of the Krasovskii classical stability theorems for stability analysis of time-varying time-delay systems. The condition of negativity of the time-derivative of Razumikhin functions and Krasovskii functionals is weakened.
Bin Zhou, Alexey V. Egorov
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Reset observers for linear time-varying delay systems: Delay-dependent approach
Journal of the Franklin Institute, 2014zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhao, Guanglei, Wang, Jingcheng
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DELAY-DEPENDENT ASYMPTOTIC STABILITY OF NEURAL NETWORKS WITH TIME-VARYING DELAYS
International Journal of Bifurcation and Chaos, 2008This paper considers the problem of stability analysis for neural networks with time-varying delays. The time-varying delays under consideration are assumed to be bounded but not necessarily differentiable. In terms of a linear matrix inequality, a delay-dependent asymptotic stability condition is developed, which ensures the existence of a unique ...
Lam, J, Ho, DWC, Xu, S
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