Results 21 to 30 of about 46,475 (334)

A Wasserstein generative adversarial network with gradient penalty for active sonar signal reverberation suppression

open access: yesFrontiers in Marine Science, 2023
Reverberation is the primary background interference of active sonar systems in shallow water environments, affecting target position detection accuracy.
Zhen Wang   +6 more
doaj   +1 more source

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

Process system engineering in biodiesel production: a review [PDF]

open access: yes, 2013
Biodiesel is fast becoming a popular alternative to fossil fuels, as it is natural, renewable and has low toxic emissions. Strategies that have been adopted to ensure continued growth of the biodiesel industry are policy development, reduction of ...
Kamarudin, S.K.   +3 more
core   +2 more sources

Acoustic Characterization of Rooms Using Reverberation Time Estimation Based on Supervised Learning Algorithm

open access: yesApplied Sciences, 2021
The measurement of reverberation time is an essential procedure for the characterization of the acoustic performance of rooms. The values returned by these measurements allow us to predict how the sound will be transformed by the walls and furnishings of
Giuseppe Ciaburro, Gino Iannace
doaj   +1 more source

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

Experimental Validation of the Model of Reverberation Time Prediction in a Room

open access: yesBuildings, 2022
It is well known that the uncertainty of input data has a great influence on the accuracy of room acoustics simulations. The aforementioned accuracy is significantly influenced by the selection of the acoustic properties of room-delimiting materials ...
Artur Nowoświat, Marcelina Olechowska
doaj   +1 more source

Effects of virtual acoustics on dynamic auditory distance perception [PDF]

open access: yes, 2017
Sound propagation encompasses various acoustic phenomena including reverberation. Current virtual acoustic methods, ranging from parametric filters to physically-accurate solvers, can simulate reverberation with varying degrees of fidelity.
Atul Rungta   +8 more
core   +3 more sources

Reverberation-Time Meter [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1939
A portable direct-reading apparatus for the measurement of rate of decay of sound will be described.
openaire   +2 more sources

Experimental Study on Source Level Estimation Techniques of Underwater Sound Source in Reverberant Water Tank [PDF]

open access: yes한국해양공학회지, 2019
The acoustic power is used as a primary index characterizing underwater sound sources and could be defined by its source level. The source level has been assessed using various experimental techniques such as the reverberation time method and reverberant
Kookhyun Kim
doaj   +1 more source

Experimental analysis of dense multipath components in an industrial environment [PDF]

open access: yes, 2013
This work presents an analysis of dense multipath components (DMC) in an industrial workshop. Radio channel sounding was performed with a vector network analyzer and virtual antenna arrays.
Gaillot, Davy P   +4 more
core   +4 more sources

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