Results 21 to 30 of about 47,481 (322)

A Space-Time Adaptive Processing Method Based on Sparse Reconstruction of Reverberation Interference

open access: yesXibei Gongye Daxue Xuebao, 2020
Aiming at the problem of how to obtain reverberation samples and estimate their covariance matrix in the space-time adaptive processing(STAP) of sonar system, a new space-time adaptive processing method is proposed based on sparse reconstruction of ...

doaj   +1 more source

Recall of Reverberant Speech in Quiet and Four-Talker Babble Noise

open access: yesBrain Sciences, 2021
Using behavioral evaluation of free recall performance, we investigated whether reverberation and/or noise affected memory performance in normal-hearing adults. Thirty-four participants performed a free-recall task in which they were instructed to repeat
Miseung Koo   +6 more
doaj   +1 more source

Central Masses and Broad-Line Region Sizes of Active Galactic Nuclei. II. A Homogeneous Analysis of a Large Reverberation-Mapping Database [PDF]

open access: yes, 2004
We present improved black hole masses for 35 active galactic nuclei (AGNs) based on a complete and consistent reanalysis of broad emission-line reverberation-mapping data.
B. Peterson   +13 more
semanticscholar   +1 more source

Reverberation Noise Suppression in Ultrasound Channel Signals Using a 3D Fully Convolutional Neural Network

open access: yesIEEE Transactions on Medical Imaging, 2021
Diffuse reverberation is ultrasound image noise caused by multiple reflections of the transmitted pulse before returning to the transducer, which degrades image quality and impedes the estimation of displacement or flow in techniques such as elastography
Leandra L. Brickson   +3 more
semanticscholar   +1 more source

Reverberations

open access: yes2025 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops (VRW)
Abstract In the Colombian peace referendum, the 2016 accord with the FARC guerrilla, which sought to end fifty years of war, was rejected by 50.2% of voters. The referendum created new identity divides between ‘Yes’ and ‘No’ voters, product of political “narrative wars” which intersected with ...
Sébastien Beaumont, Florent Berthaut
  +7 more sources

Research on reverberation characteristics analysis and suppression methods for active continuous detection [PDF]

open access: yesMATEC Web of Conferences, 2019
Compared with the traditional active detection with monopulse periodic emission mode, active continuous detection has the advantages of large emission duty ratio and continuous acquisition of process information.
Chen Tuo, Ma Qiming, Zhou Zheyuan, Lu He
doaj   +1 more source

Simulation of sonar reverberation signal considering the ocean multipath and Doppler effect

open access: yesFrontiers in Marine Science, 2023
In order to achieve accurate modeling and simulation of sonar reverberation signals, four types of multi-path underwater reverberation models are established considering Doppler effect under the condition of separating the sound source and hydrophone ...
Sen Zhang, Jian Wu, Jian Wu, Tianqi Yin
doaj   +1 more source

Multi-timescale reverberation mapping of Mrk 335 [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2020
Time lags due to X-ray reverberation have been detected in several Seyfert galaxies. The different traveltime between reflected and directly observed rays naturally causes this type of lag, which depends directly on the light-crossing time-scale of the
G. Mastroserio   +2 more
semanticscholar   +1 more source

An overview of methods for generating, augmenting and evaluating room impulse response using artificial neural networks

open access: yesMokslas: Lietuvos Ateitis, 2021
Methods based on artificial neural networks (ANN) are widely used in various audio signal processing tasks. This provides opportunities to optimize processes and save resources required for calculations.
Mantas Tamulionis
doaj   +1 more source

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