This paper studies dynamical aspects of neural systems with delayed negative feedback modelled by nonlinear delay-differential equations. These systems undergo a Hopf bifurcation from a stable fixed point to a stable limit cycle oscillation as certain parameters are varied. It is shown that their frequency of oscillation is robust to parameter variations and noisy fluctuations, a property that ...

This article presents the study of stability single-input and multiple-input systems with point or distributed state delay input saturation. By a linear transformation applied to initial system delay, is obtained without but which equivalent from view stability. Next, using sufficient conditions for global asymptotic bounded control, new are In addition, results on instability estimation region...

Robust adaptive control of nonlinear systems with unknown state delay A robust dynamic inversion technique for asymptotic tracking control of an aircraft Non-linear control of variable-speed wind turbines with permanent magnet synchronous generators: a robust backstepping approach A new robust nonlinear control algorithm for the regulation of blood glucose in diabetic patients Robust backsteppi...

It is well known that many engineering control systems such as conventional oil-chemical industrial processes, nuclear reactors, long transmission lines in pneumatic, hydraulic and rolling mill systems, flexible joint robotic manipulators and machine-tool systems, jet engine and automobile control, human-autopilot systems, ground controlled satellite and networked control and communication syst...

In this article, an observer with delay-dependent stability conditions has been presented for time delay systems with unknown inputs, where the time delay terms exist in the state and output of the system. The designing of this observer, whose performance index is the H2 norm, has been formulated as a nonlinear optimization problem. By using the finite characterization of a Lyapunov functional ...

This paper is concerned with the design of a model reference adaptive variable structure control (MRAVSC) scheme for a class of perturbed large-scale systems with mismatched uncertainties and time-varying delay interconnections in order to solve robust state tracking problems. This control scheme with an adaptive mechanism embedded and a perturbation estimation process can achieve robust state ...