Results 51 to 60 of about 464,807 (189)

Time Synchronization Technique Hardware Implementation for OFDM Systems With Hermitian Symmetry for VLC Applications

open access: yesIEEE Access, 2023
The main contribution of this work is the proposal and hardware implementation of an algorithm for the time synchronization of orthogonal frequency division multiplexing (OFDM) modulation with Hermitian symmetry for visible light communications (VLC ...
Lozada D. Randy   +2 more
doaj   +1 more source

Time-domain stability of parametric synchronization in a spin-torque nano-oscillator based on a magnetic tunnel junction

open access: yes, 2017
We report on a time-domain study of parametric synchronization in a magnetic tunnel junction based spin torque nano-oscillator (STNO). Time-domain measurements of the instantaneous frequency ($f_{i}$) of a parametrically synchronized STNO show random ...
Dürrenfeld, Philipp   +4 more
core   +1 more source

Synchronizing Time Distribution

open access: yesJournal of Al-Qadisiyah for Computer Science and Mathematics, 2023
With the wide span of internet brought great progress in different parts of human life, a digital documents have been employed as a media in exchange information between internet parties like text, audio, pictures and videos that leads to the issue of how to certify the document when created or modified in order to use it as secure digital media for ...
openaire   +1 more source

Time scale synchronization of chaotic oscillators

open access: yes, 2006
This paper presents the result of the investigation of chaotic oscillator synchronization. A new approach for detecting of synchronized behaviour of chaotic oscillators has been proposed. This approach is based on the analysis of different time scales in
Abarbanel   +43 more
core   +1 more source

Slower Speed and Stronger Coupling: Adaptive Mechanisms of Self-Organized Chaos Synchronization

open access: yes, 2001
We show that two initially weakly coupled chaotic systems can achieve self-organized synchronization by adaptively reducing their speed and/or enhancing the coupling strength.
B. Blasius   +8 more
core   +1 more source

The effect of distributed time-delays on the synchronization of neuronal networks

open access: yes, 2016
Here we investigate the synchronization of networks of FitzHugh-Nagumo neurons coupled in scale-free, small-world and random topologies, in the presence of distributed time delays in the coupling of neurons.
Kachhvah, Ajay Deep
core   +1 more source

Synchronization of time-continuous chaotic oscillators [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2003
Considering a system of two coupled identical chaotic oscillators, the paper first establishes the conditions of transverse stability for the fully synchronized chaotic state. Periodic orbit threshold theory is applied to determine the bifurcations through which low-periodic orbits embedded in the fully synchronized state lose their transverse ...
Yanchuk, Serhiy   +2 more
openaire   +4 more sources

Finite-Time Adaptive Synchronization and Fixed-Time Synchronization of Fractional-Order Memristive Cellular Neural Networks with Time-Varying Delays

open access: yesMathematics
Asymptotic synchronization requires continuous external control of the system, which is unrealistic considering the cost of control. Adaptive control methods have strong robustness to uncertainties such as disturbances and unknowns.
Yihong Liu, Yeguo Sun
doaj   +1 more source

Design and Validation of Android Smartphone Based Wireless Structural Vibration Monitoring System

open access: yesSensors, 2020
Vibration monitoring is one of crucial functions of structural health monitoring (SHM) systems. Traditional structural vibration monitoring usually relies on specialized sensors, data transmission and acquisition equipment, which are expensive and may ...
Dongyu Zhang, Jiadong Tian, Hui Li
doaj   +1 more source

Cryptography based on neural networks - analytical results

open access: yes, 2002
Mutual learning process between two parity feed-forward networks with discrete and continuous weights is studied analytically, and we find that the number of steps required to achieve full synchronization between the two networks in the case of discrete ...
Engel A   +12 more
core   +1 more source

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