Results 21 to 30 of about 7,200,285 (346)

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

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

Error Model and Frequency Modulation Characteristics Analysis of Laser Processing Platform for Micro Crystal Resonator

open access: yesApplied Sciences, 2022
Laser processing platform for micro crystal resonator (MCR) frequency modulation is an important piece of equipment to apply laser etching technology to the MCR frequency modulation process.
Jian Hu   +4 more
doaj   +1 more source

Orthogonal Time Frequency Space Modulation [PDF]

open access: yesIEEE Wireless Communications and Networking Conference, 2017
A new two-dimensional modulation technique called Orthogonal Time Frequency Space (OTFS) modulation designed in the delay-Doppler domain is introduced.
R. Hadani   +10 more
semanticscholar   +1 more source

Design and Optimization of Laser Processing Control System and Process Parameters for Micro Crystal Resonator Frequency Modulation

open access: yesApplied Sciences, 2022
The adjustment of the natural frequency of a micro crystal resonator (MCR) is the key requirement in its manufacturing, which determines the actual performance of the product. Laser processing is a new method for MCR frequency modulation, and its process
Jian Hu   +5 more
doaj   +1 more source

Orthogonal Time-Frequency Space Modulation: A Promising Next-Generation Waveform

open access: yesIEEE wireless communications, 2021
Sixth-generation (6G) wireless networks are envisioned to provide global coverage for the intelligent digital society of the near future, ranging from traditional terrestrial to non-terrestri-al networks, where reliable communications in high-mobility ...
Zhiqiang Wei   +6 more
semanticscholar   +1 more source

Gait-related frequency modulation of beta oscillatory activity in the subthalamic nucleus of parkinsonian patients.

open access: yesBrain Stimulation, 2020
BACKGROUND Abnormal beta band activity in the subthalamic nucleus (STN) is known to be exaggerated in patients with Parkinson's disease, and the amplitude of such activity has been associated with akinetic rigid symptoms.
A. Canessa   +3 more
semanticscholar   +1 more source

Learning of Time-Frequency Attention Mechanism for Automatic Modulation Recognition [PDF]

open access: yesIEEE Wireless Communications Letters, 2021
Recently, deep learning-based image classification and speech recognition approaches have made extensive use of attention mechanisms to achieve state-of-the-art recognition, which demonstrates the effectiveness of attention mechanisms.
Shan Lin, Yuan Zeng, Yi Gong
semanticscholar   +1 more source

Interference Cancellation and Iterative Detection for Orthogonal Time Frequency Space Modulation [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2018
The recently proposed orthogonal time–frequency–space (OTFS) modulation technique was shown to provide significant error performance advantages over orthogonal frequency division multiplexing (OFDM) over delay-Doppler channels.
P. Raviteja   +3 more
semanticscholar   +1 more source

Optical parametric wideband frequency modulation

open access: yesAPL Photonics, 2022
Various types of photonic applications, such as sensing and communication, require the generation of wideband optical frequency-modulated (FM) signals.
Shota Ishimura   +3 more
doaj   +1 more source

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