13 research outputs found
EXPERIMENTAL CHARACTERISATION OF THE DISPERSION EVOLUTION VERSUS STRETCHING IN A LARGE STROKE OPTICAL FIBRE DELAY LINE
Full text linkUtilisation des fibres optiques dans un interférométre stellalre: demonstration en laboratoire des possibilités d'imagerie, étude et conception de lignes à retard métrique
No full textOptimizing the optical components choice for performances improvement of multimode fiber gyroscope
No full text
Co-simulation-based modeling and performance analysis of hybrid fiber-wireless links
No full textInternational audienceWe present a new approach for the performance analysis of hybrid fiber/wireless communication systems. This approach is based on a co-simulation using two types of dedicated software: the first is used for RF/wireless systems whereas the second is devoted to optical communication systems. The proposed method enables simultaneous simulation of all elements of the radio-over-fiber link with accurate modeling. A low-cost wireless local area network over a fiber distribution system is implemented in order to validate the results experimentally. Simulation results are in good agreement with experimental measurements in terms of EVM evolution for different link element configuration
Co-simulation-based modeling and performance analysis of hybrid fiber-wireless links
No full textInternational audienceWe present a new approach for the performance analysis of hybrid fiber/wireless communication systems. This approach is based on a co-simulation using two types of dedicated software: the first is used for RF/wireless systems whereas the second is devoted to optical communication systems. The proposed method enables simultaneous simulation of all elements of the radio-over-fiber link with accurate modeling. A low-cost wireless local area network over a fiber distribution system is implemented in order to validate the results experimentally. Simulation results are in good agreement with experimental measurements in terms of EVM evolution for different link element configuration
Co-simulation-based modeling and performance analysis of hybrid fiber-wireless links
No full textInternational audienceWe present a new approach for the performance analysis of hybrid fiber/wireless communication systems. This approach is based on a co-simulation using two types of dedicated software: the first is used for RF/wireless systems whereas the second is devoted to optical communication systems. The proposed method enables simultaneous simulation of all elements of the radio-over-fiber link with accurate modeling. A low-cost wireless local area network over a fiber distribution system is implemented in order to validate the results experimentally. Simulation results are in good agreement with experimental measurements in terms of EVM evolution for different link element configuration
The cumulative occurrence of resistance mutations in the HIV-1 protease gene is associated with failure of salvage therapy with ritonavir and saquinavir in protease inhibitor-experienced patients1
Full text linkParametric resonance in the Rayleigh–Duffing oscillator with time-delayed feedback
No full textWe investigate the principal parametric resonance of a Rayleigh–Duffing oscillator with
time-delayed feedback position and linear velocity terms. Using the asymptotic perturbation
method, we obtain two slow flow equations on the amplitude and phase of the oscillator.
We study the effects of the frequency detuning, the deterministic amplitude, and the
time-delay on the dynamical behaviors, such as stability and bifurcation associated with
the principal parametric resonance. Moreover, the appropriate choice of the feedback gain
and the time-delay is discussed from the viewpoint of vibration control. It is found that the
appropriate choice of the time-delay can broaden the stable region of the non-trivial
steady-state solutions and enhance the control performance. Theoretical stability analysis
is verified through a numerical simulation.The University of Pretoriahttp://www.elsevier.com/locate/cnsnsai201
