Buscar
Mostrando ítems 1-10 de 1837
Spectral shuffling with phase encoding and dynamic keys applied to transparent optical network signals
(2020-07-01)
A recently proposed signal encryption technique consists in shuffling the samples of two or more baseband signals, which are then modulated in different optical carriers and transmitted by transparent optical networks. In ...
Spectral Shuffling with Phase Encoding and Dynamic Keys Applied to Transparent Optical Network Signals
(Ieee, 2020-01-01)
A recently proposed signal encryption technique consists in shuffling the samples of two or more baseband signals, which are then modulated in different optical carriers and transmitted by transparent optical networks. In ...
An Adaptive Run Length Encoding method for the compression of electrocardiograms
(Elsevier Sci LtdOxfordInglaterra, 2013)
A simple encoding method for Sigma-Delta ADC based biopotential acquisition systems
(Taylor & Francis, 2017-10)
Sigma Delta analogue-to-digital converters allow acquiring the full dynamic range of biomedical signals at the electrodes, resulting in less complex hardware and increased measurement robustness. However, the increased ...
Velocity Variability in MRI Phase-Contrast
(IEEE, 2018)
MRI phase contrast is a well known technique for computing the average velocity associated to each pixel. In this work, we calculate the exact probability distribution function for the velocity given the noise in the signal. ...
Time-variant signal encryption by lensless dual random phase encoding applied to fiber optic links
(Optical Society of America, 2007-09)
A lensless dual random phase encoding technique in the temporal domain is proposed and analyzed to evaluate its potential application for secure data transmission, mainly for short-haul fiber optic links. The different ...
Proposal of a dedicated telemetry device for real-time and remote measurements
(2011-09-05)
This work aims to demonstrate an application of telemetry for monitoring process variables. The authors developed the prototype of a dedicated device capable of multiplexing, encoding and transmitting real-time data signals ...