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Robust Reverberation Suppression Method Based on Alternating Projections [PDF]

open access: goldSensors
By leveraging the high correlation between multi-ping echo data, low-rank and sparse decomposition methods are applied for reverberation suppression.
Xiongwei Xiao, Feng Xu, Juan Yang
doaj   +6 more sources

A construction method of reverberation suppression filter using an end-to-end network. [PDF]

open access: goldPLoS ONE, 2023
Reverberation is the primary background interference of active sonar systems in shallow water environments, affecting target position detection accuracy.
Zhen Wang, Hao Zhang, Xiao Chen, Yuan An
doaj   +3 more sources

A Reverberation Suppression Method Based on the Joint Design of a PTFM Waveform and Receiver Filter [PDF]

open access: goldEntropy, 2022
Transmitting waveform design and signal processing method optimization are effective ways to improve a sonar system’s detection performance. In this study, the spectrum and ambiguity function characteristics of pulse trains of frequency modulation (PTFM)
Lei Yue   +3 more
doaj   +4 more sources

Blind binary masking for reverberation suppression in cochlear implants. [PDF]

open access: bronzeJ Acoust Soc Am, 2013
A monaural binary time-frequency (T-F) masking technique is proposed for suppressing reverberation. The mask is estimated for each T-F unit by extracting a variance-based feature from the reverberant signal and comparing it against an adaptive threshold.
Hazrati O, Lee J, Loizou PC.
europepmc   +6 more sources

Underwater Reverberation Suppression Using Wavelet Transform and Complementary Learning [PDF]

open access: goldOceans
Reverberation is the primary interference of active detection. Therefore, the effective suppression of reverberation is a prerequisite for reliable signal processing.
Jiajie Liu   +4 more
doaj   +3 more sources

Linear Frequency Modulated Reverberation Suppression Using Non-Negative Matrix Factorization Methods, Dechirping Transformation and Modulo Operation [PDF]

open access: goldIEEE Access, 2020
In this study, we propose a reverberation suppression algorithm for linear frequency-modulated (LFM) pulse sonar systems using a non-negative matrix factorization (NMF) method.
Geunhwan Kim, Kyunkyung Lee, Seokjin Lee
doaj   +2 more sources

Suppression of reverberation artifact by subtraction imaging [PDF]

open access: bronzeThe Journal of the Acoustical Society of America, 1990
Reverberations in ultrasound pulse-echo signals are the result of parallel specular reflectors that are perpendicular to the incident sound beam. The multiple reflections within the space between the reflectors cause a decaying pulse train of echoes to be superimposed on the returned echoes due to other structures. In a medical ultrasound B-scan, these
Terry A. Kling, K. Kirk Shung
openaire   +2 more sources

Late reverberation suppression using U-nets [PDF]

open access: green, 2021
In real-world settings, speech signals are almost always affected by reverberation produced by the working environment; these corrupted signals need to be \emph{dereverberated} prior to performing, e.g., speech recognition, speech-to-text conversion, compression, or general audio enhancement.
León, Diego, Tobar, Felipe
openaire   +3 more sources

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

open access: goldFrontiers 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   +2 more sources

Waveform Design Using Coprime Frequency-Modulated Pulse Trains for Reverberation Suppression of Active Sonar [PDF]

open access: goldJournal of Marine Science and Engineering, 2022
Over the last two decades, low-frequency active sonar has become an attractive tool for underwater target detection. The reverberation to signal ratio (RSR) of transmitted waveforms is an important factor affecting the detection capability of low ...
Xiaobin Cui   +5 more
doaj   +2 more sources

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