Results 11 to 20 of about 2,071,116 (352)

Broadband Photonic Microwave Noise Sources [PDF]

open access: yesIEEE Photonics Technology Letters, 2020
This work was supported in part by the European Union's Horizon 2020 Research and Innovation Programme (ULTRAWAVE-Project), under Grant 762119.
openaire   +3 more sources

Modulated Broadband Mode Decomposition for the Feature Extraction of Double Pulse Metal Inert Gas Welding

open access: yesIEEE Access, 2020
A lot of adaptive signal decomposition methods have been applied for nonstationary DPMIG electrical signals as they are always affected by noise. Recently, to solve the problems of former methods caused by the Gibbs phenomenon and the calculation of ...
Yanfeng Peng   +8 more
doaj   +1 more source

RF-SOI Low-Noise Amplifier Using RC Feedback and Series Inductive-Peaking Techniques for 5G New Radio Application

open access: yesSensors, 2023
This paper presents a low-noise amplifier (LNA) with an integrated input and output matching network designed using RF-SOI technology. This LNA was designed with a resistive feedback topology and an inductive peaking technology to provide 600 MHz of ...
Min-Su Kim, Sang-Sun Yoo
doaj   +1 more source

Influence of local oscillator phase noise on noise figure of wideband receiver

open access: yesDianzi Jishu Yingyong, 2020
Based on the analysis of the influence of wide-band local oscillator with different phase noise on the received noise figure of the wideband receiver, a wideband mixer is used to actually test to obtain the phase noise of the mixer IF signal, through the
Li Xiaqin
doaj   +1 more source

Implementasi Wavelet pada Data Seismik Gunungapi

open access: yesJurnal Fisika Flux, 2020
Noise decomposition on seismic volcanic data with wavelet using Daubechies wavelet decomposition on X and Y direction record data. Seismic volcanic data is in the form of broadband data, which broadband data has a wide frequency range so that it has a ...
Dairoh Dairoh, Dega Surono Wibowo
doaj   +1 more source

Review of Control Technologies for Quiet Operations of Advanced Air-Mobility

open access: yesApplied Sciences, 2023
The current technologies for developing quiet rotor noise in urban canyons are reviewed. Several passive noise control approaches are discussed with their limitations in reducing both tonal and broadband noise.
Samuel Afari   +3 more
doaj   +1 more source

Aeroacoustic design and broadband noise predictions of a fan stage with serrated outlet guide vanes

open access: yesThe Physics of Fluids, 2020
This work, realized in the framework of the European project TurboNoiseBB, presents an advanced aeroacoustic design methodology of Outlet Guide Vanes (OGVs) with leading edge serrations, including details on their broadband noise and aerodynamic ...
C. Polacsek   +5 more
semanticscholar   +1 more source

A non-invasive, quantitative study of broadband spectral responses in human visual cortex. [PDF]

open access: yesPLoS ONE, 2018
Currently, non-invasive methods for studying the human brain do not routinely and reliably measure spike-rate-dependent signals, independent of responses such as hemodynamic coupling (fMRI) and subthreshold neuronal synchrony (oscillations and event ...
Eline R Kupers   +5 more
doaj   +1 more source

Aero-acoustical Study of Axial Fan using Computational Fluid Dynamics [PDF]

open access: yesJournal of Agricultural Machinery, 2020
Introduction The issue of noise pollution is one of the concerns of most societies and industries because of their relationship to the environmental comfort of life or work of people are paying attention. The Aero-acoustics not only because of government
B Sabralilou   +3 more
doaj   +1 more source

A semi-adaptive feedforward hybrid active noise control algorithm for multichannel systems [PDF]

open access: yesJASA Express Letters
Broadband active noise control systems incorporating fixed controllers exhibit limited ability to reduce sinusoids. This study presents a semi-adaptive feedforward hybrid active noise control (HANC) system to address this issue. The proposed system pairs
Shengnan Cao   +3 more
doaj   +1 more source

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