Results 91 to 100 of about 6,376,509 (292)

An Oscillatory Neural Autoencoder Based on Frequency Modulation and Multiplexing

open access: yesFrontiers in Computational Neuroscience, 2018
Oscillatory phenomena are ubiquitous in the brain. Although there are oscillator-based models of brain dynamics, their universal computational properties have not been explored much unlike in the case of rate-coded and spiking neuron network models.
Karthik Soman   +2 more
doaj   +1 more source

Auditory training during development mitigates a hearing loss-induced perceptual deficit.

open access: yesFrontiers in Systems Neuroscience, 2014
Sensory experience during early development can shape the central nervous system and this is thought to influence adult perceptual skills. In the auditory system, early induction of conductive hearing loss (CHL) leads to deficits in central auditory ...
Ramanjot eKang   +3 more
doaj   +1 more source

Tradeoff between User Experience and BCI Classification Accuracy with Frequency Modulated Steady-State Visual Evoked Potentials

open access: yesFrontiers in Human Neuroscience, 2017
Steady-state visual evoked potentials (SSVEPs) have been widely employed for the control of brain-computer interfaces (BCIs) because they are very robust, lead to high performance, and allow for a high number of commands. However, such flickering stimuli
Alexander M. Dreyer   +4 more
doaj   +1 more source

Space-Time-Frequency Shift Keying for Dispersive Channels

open access: yes, 2011
Inspired by the concept of the Space-Time Shift Keying (STSK) modulation, in this paper we proposed the Space-Frequency Shift Keying (SFSK) modulation as well as the Space-Time-Frequency Shift Keying (STFSK) concept which spreads the transmit signal not ...
Hanzo, Lajos   +3 more
core   +1 more source

Optimal LLC Converter Design With Topology Morphing Control for Wide Voltage Range Battery Charging Applications

open access: yesIEEE Open Journal of Power Electronics
LLC converters benefit from soft switching and sinusoidal currents over dual active bridge (DAB) converters. The design process of an LLC converter involves the selection of resonant tank inductor, capacitor, magnetizing inductance, resonant frequency ...
Guvanthi Abeysinghe Mudiyanselage   +2 more
doaj   +1 more source

Analog Frequency Tracking Filter

open access: yesAdvances in Electrical and Computer Engineering, 2013
This paper propose a new type of analog adaptive filter derived as a generalization of the concept of matched filter. We conceive such a filter to track the instantaneous frequency of frequency modulated signals.
ISAR, A., ISAR, D.
doaj   +1 more source

Quantum dynamics of a two-level emitter with modulated transition frequency

open access: yes, 2014
The resonant quantum dynamics of an excited two-level emitter is investigated via classical modulation of its transition frequency while simultaneously the radiator interacts with a broadband electromagnetic field reservoir.
Keitel, Christoph H., Macovei, Mihai
core   +1 more source

Nonquantized frequency-modulated altimeter [PDF]

open access: yesJournal of Research of the National Bureau of Standards, 1953
A new principle that makes possible nonquantized altitude information so that the accurate range of altimeters can be extended to include low-level operation is described. A frequency shifter is inserted between the local oscillator and the mixer in order to remove the inherent error in conventional altimeters that makes them objectionable for low ...
H. P. Kalmus   +2 more
openaire   +2 more sources

Critical modulation frequency and critical band based on random amplitude and frequency changes

open access: yesArchives of Acoustics, 2014
The presented paper deals with determination of the critical modulation frequency (CMF) and critical bandwidth in the case of random amplitude and frequency changes in a sinusoidal signal.
A. SĘK
doaj  

Probing viscoelastic surfaces with bimodal tapping-mode atomic force microscopy: Underlying physics and observables for a standard linear solid model

open access: yesBeilstein Journal of Nanotechnology, 2014
This paper presents computational simulations of single-mode and bimodal atomic force microscopy (AFM) with particular focus on the viscoelastic interactions occurring during tip–sample impact.
Santiago D. Solares
doaj   +1 more source

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