Results 31 to 40 of about 6,346,538 (309)

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

Tuning of human modulation filters is carrier-frequency dependent [PDF]

open access: yes, 2013
Recent studies employing speech stimuli to investigate 'cocktail-party' listening have focused on entrainment of cortical activity to modulations at syllabic (5 Hz) and phonemic (20 Hz) rates.
Reiss Joshua D.   +11 more
core   +1 more source

JLHS: A Joint Linear Frequency Modulation and Hyperbolic Frequency Modulation Approach for Speed Measurement

open access: yesIEEE Access, 2020
In the waveform design, the distance measurement and resolution are a pair of irreconcilable contradictions. Linear Frequency Modulation (LFM) can alleviate this contradiction.
Yuankun Peng   +7 more
doaj   +1 more source

Capacity Planning and Operation Strategy of New PV-Storage Power Station Based on Frequency Modulation Service

open access: yesZhongguo dianli, 2023
In order to take full advantages of the new PV-Storage power station participating in power grid multi-time scale frequency modulation while considering the operation economy.
Guoming QIAN   +4 more
doaj   +1 more source

Optimised frequency modulation for continuous-wave optical magnetic resonance sensing using nitrogen-vacancy ensembles. [PDF]

open access: yesOptics Express, 2017
Magnetometers based on ensembles of nitrogen-vacancy centres are a promising platform for continuously sensing static and low-frequency magnetic fields.
H. El-Ella   +4 more
semanticscholar   +1 more source

Transmission Perspective on the Mechanism of Coarse and Fine Crackle Sounds

open access: yesArchives of Acoustics, 2021
The possibility of a normal distribution indicates that few particles are in the same phase during a breath and their reflections can be observed on the chest wall, then a few explosive waves with relatively large power occurr occasionally.
Bing-Yuh LU   +2 more
doaj   +1 more source

Detection of frequency modulation at large modulation frequencies [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1978
Several studies have been made of the minimum frequency excursions Δf required for detection of frequency modulation, with modulation frequency fm. [E. Zwicker, Acustica, 2, 125–133 (1952) R. H. Kay and D. R. Matthews, J. Physiol. 225, 657–677 (1972)]. The graph of minimum Δf vs fm has a pronounced peak at large values of fm.
openaire   +1 more source

Frequency modulated microrheology

open access: yesLab on a Chip, 2015
Coupling analog frequency modulation (FM) to the driving stimulus in active microrheology measurements conducted with optical tweezers effectively parallelizes numerous single-frequency experiments.
Matthew M, Shindel, Eric M, Furst
openaire   +3 more sources

Method of calibrating modulation meter MI 2305

open access: yesVojnotehnički Glasnik, 2000
In this article an original way of calibrating the MI 2305 modulation meter is described. AM traceability is achieved using tree secondary etalons. FM traceability calibrating is achieved by using the Bessel zero method.
Milovan Unković
doaj   +1 more source

Suppression of Frequency Modulation to Amplitude Modulation Conversion with Modified Group Velocity Dispersion Compensation Device in the Front End of High-Power Lasers

open access: yesApplied Sciences, 2022
The group velocity dispersion (GVD) occurring in the front end of high-power lasers is one of the primary factors leading to the conversion of frequency modulation (FM) to amplitude modulation (AM).
Xinlei Qian   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy