Results 11 to 20 of about 6,346,538 (309)

Joint Acoustic and Modulation Frequency [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2003
There is a considerable evidence that our perception of sound uses important features which is related to underlying signal modulations. This topic has been studied extensively via perceptual experiments, yet there are few, if any, well-developed signal ...
Les Atlas, Shihab A. Shamma
doaj   +3 more sources

Laser frequency stabilization by combining modulation transfer and frequency modulation spectroscopy [PDF]

open access: yesApplied Optics, 2017
5 pages, 3 figures, submitted to ...
Zi, Fei   +7 more
openaire   +4 more sources

High-frequency gravitational wave detection via optical frequency modulation [PDF]

open access: yesPhysical Review D, 2023
High-frequency gravitational waves can be detected by observing the frequency modulation they impart on photons. We discuss fundamental limitations to this method related to the fact that it is impossible to construct a perfectly rigid detector.
T. Bringmann   +3 more
semanticscholar   +1 more source

Observation of the Rotational Doppler Effect With Structured Beams in Atomic Vapor

open access: yesFrontiers in Physics, 2022
A vector beam with the spatial variation polarization has attracted keen interest and is progressively applied in quantum information, quantum communication, precision measurement, and so on.
Shuwei Qiu   +6 more
doaj   +1 more source

Energy Storage Auxiliary Frequency Modulation Control Strategy Considering ACE and SOC of Energy Storage

open access: yesIEEE Access, 2021
As more and more unconventional energy sources are being applied in the field of power generation, the frequency fluctuation of power system becomes more and more serious.
Gaojun Meng   +6 more
semanticscholar   +1 more source

Rapid frequency modulation in a resonant system: aerial perturbation recovery in hawkmoths

open access: yesProceedings of the Royal Society B, 2021
Centimetre-scale fliers must contend with the high power requirements of flapping flight. Insects have elastic elements in their thoraxes which may reduce the inertial costs of their flapping wings.
J. Gau   +5 more
semanticscholar   +1 more source

A joint clearing model for the participation of renewable energy and energy storage in the frequency modulation ancillary service market considering performance differences

open access: yesFrontiers in Energy Research, 2023
The increasing growth in installed capacity for renewable energy sources has progressively replaced traditional thermal power units as synchronous power contributors.
Chang Wang   +9 more
doaj   +1 more source

Review on the Research Progress of Primary Frequency Modulation Technology for Thermal Power Units

open access: yes南方能源建设, 2022
[Introduction] The primary frequency modulation technology of thermal power units has been considered essential to ensure the power grid's safe and stable operation.
Chunfeng YUAN   +6 more
doaj   +1 more source

Cross Domain Iterative Detection for Orthogonal Time Frequency Space Modulation [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2021
Recently proposed orthogonal time frequency space (OTFS) modulation has been considered as a promising candidate for accommodating various emerging communication and sensing applications in high-mobility environments.
Shuangyang Li   +3 more
semanticscholar   +1 more source

Influence of wind turbine inertia support on frequency drop characteristics of power grid

open access: yesZhejiang dianli, 2023
With the increasing penetration of new energy sources in large synchronous grids, renewable generator units that do not have inertial response capability may undermine the inertia of the system.
CHEN Longxiang   +5 more
doaj   +1 more source

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