Results 11 to 20 of about 51,517 (253)

Magnitude Squared of Coherence to Detect Imaginary Movement [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2009
This work investigates the Magnitude Squared of Coherence (MSC) for detection of Event Related Potentials (ERPs) related to left-hand index finger movement. Initially, ERP presence was examined in different brain areas.
Sady Antônio Santos Filho   +5 more
doaj   +2 more sources

SCA with Magnitude Squared Coherence [PDF]

open access: yes, 2013
Magnitude Squared Coherence is a signal processing tool that indicates how well two time domain signals match one with the other by tracking linear dependencies in their spectral decomposition. SCAN was the first way to use it as a SCA. This paper introduces two ways of using the Magnitude Squared Coherence in Side Channel Analysis. The first way is to
Maurine, Philippe, Tiran, Sébastien
openaire   +1 more source

Intermuscular Coherence Between Surface EMG Signals Is Higher for Monopolar Compared to Bipolar Electrode Configurations

open access: yesFrontiers in Physiology, 2018
Introduction: The vasti muscles have to work in concert to control knee joint motion during movements like walking, running, or squatting. Coherence analysis between surface electromyography (EMG) signals is a common technique to study muscle ...
Maurice Mohr   +4 more
doaj   +1 more source

Coherent phase transfer for real-world twin-field quantum key distribution

open access: yesNature Communications, 2022
Exploiting technologies derived from the optical clocks community, the authors demonstrate a setup for twin-field QKD which extends the coherence times by three orders of magnitude, overcoming the main challenge towards real-world implementation.
Cecilia Clivati   +12 more
doaj   +1 more source

Design of a Direction-of-Arrival Estimation Method Used for an Automatic Bearing Tracking System

open access: yesSensors, 2016
In this paper, we introduce a sub-band direction-of-arrival (DOA) estimation method suitable for employment within an automatic bearing tracking system. Inspired by the magnitude-squared coherence (MSC), we extend the MSC to the sub-band and propose the ...
Feng Guo   +6 more
doaj   +1 more source

The coherence time of sunlight in the context of natural and artificial light-harvesting

open access: yesScientific Reports, 2022
The suggestion that quantum coherence might enhance biological processes such as photosynthesis is not only of fundamental importance but also leads to hopes of developing bio-inspired ‘green’ quantum technologies that mimic nature. A key question is how
Berke Vow Ricketti   +2 more
doaj   +1 more source

Orders of Magnitude Improvement in Coherence of Silicon-Vacancy Ensembles in Isotopically Purified 4H-SiC

open access: yesPRX Quantum, 2022
For solid-state spin systems, unwanted interactions with surrounding spin baths and inhomogeneity are ubiquitous challenges. In defect spin systems, part of this challenge is that the process of generating the desired defect often involves creating ...
I. Lekavicius   +10 more
doaj   +1 more source

Can InSAR Coherence and Closure Phase Be Used to Estimate Soil Moisture Changes?

open access: yesRemote Sensing, 2020
We studied the influence of the statistical properties of soil moisture changes on the Interferometric Synthetic Aperture Radar (InSAR) coherence and closure phase to determine whether the InSAR coherence and closure phase can be used to estimate soil ...
Yusuf Eshqi Molan, Zhong Lu
doaj   +1 more source

Microwave Electrometry with Multi-Photon Coherence in Rydberg Atoms

open access: yesSensors, 2023
A scheme for the measurement of a microwave (MW) electric field is proposed via multi-photon coherence in Rydberg atoms. It is based on the three-photon electromagnetically induced absorption (TPEIA) spectrum. In this process, the multi-photon produces a
Zheng Yin   +6 more
doaj   +1 more source

Patterns and wavelet coherence analysis of tidal dynamics and chlorophyll a concentration [PDF]

open access: yesGlobal Journal of Environmental Science and Management
BACKGROUND AND OBJECTIVES: Understanding the correlation between tidal rhythms and marine organism behavior is crucial. This extends beyond fluctuations in chlorophyll a concentrations and includes various biological processes in the marine environment ...
M.N. Hidayat   +4 more
doaj   +1 more source

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