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Underwater Reverberation Suppression Using Wavelet Transform and Complementary Learning

Oceans
Reverberation is the primary interference of active detection. Therefore, the effective suppression of reverberation is a prerequisite for reliable signal processing.
Jiajie Liu, Qunfei Zhang, Xiaodong Cui, Chencong Tang, Zijun Pu   +4 more
doaj   +3 more sources

Single channel reverberation suppression based on sparse linear prediction [PDF]

2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014
Reverberation degrades speech intelligibility in telecommunications as well as it increases the word error rate in automatic speech recognition tasks. Several dereverberation methods have been proposed recently in order to counter these effects. In the single microphone case, the dereverberation problem is underdetermined and reverberation suppression ...
Gael Richard
exaly   +3 more sources

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

MATEC 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   +2 more sources

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

J 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   +4 more sources

Model-based optimal action selection for Dyna-Q reverberation suppression cognitive sonar

EURASIP Journal on Advances in Signal Processing, 2023
The Doppler shift of low-speed targets is frequently disturbed by the reverberation Doppler spread clutter under the shallow sea. The clutter is generated by underwater scatterers, which increases the difficulty of Doppler estimation.
Yubin Fu, Xiaochuan Ma, Chao Feng, Xingxuan Pei, Pengzhuo Li   +4 more
doaj   +2 more sources

A channel-selection criterion for suppressing reverberation in cochlear implants [PDF]

The Journal of the Acoustical Society of America, 2011
Little is known about the extent to which reverberation affects speech intelligibility by cochlear implant (CI) listeners. Experiment 1 assessed CI users’ performance using Institute of Electrical and Electronics Engineers (IEEE) sentences corrupted with varying degrees of reverberation.
Kokkinakis, Kostas, Hazrati, Oldooz, Loizou, Philipos C.   +2 more
openaire   +5 more sources

Linear frequency modulated reverberation suppression using time series models

Indonesian Journal of Electrical Engineering and Computer Science, 2022
When active radar and sonar systems are used for target detection and tracking, boosting target detection, and tracking efficiency is the most important challenge in real-time reverberation.
J. V. Suman, M. Hema, B. Jagadeesh
semanticscholar   +3 more sources

Application of a Randomized Algorithm for Extracting a Shallow Low-Rank Structure in Low-Frequency Reverberation

Remote Sensing, 2023
The detection performance of active sonar is often hindered by the presence of seabed reverberation in shallow water. Separating the reverberations from the target echo and noise in the received signal is a crucial challenge in the field of underwater ...
Jie Pang, Bo Gao
doaj   +2 more sources

A fast reverberation suppression method based on graph Laplacian regularization [PDF]

JASA Express Letters
Traditional low-rank and sparse decomposition methods impose a global low-rank constraint for estimating the reverberation subspace, but they face performance degradation with limited samples and require computationally expensive singular value ...
Wenbo Gou, Hong Liang, Pulin Yang
doaj   +2 more sources

Reverberation suppression using non-negative matrix factorization to detect low-Doppler target with continuous wave active sonar

EURASIP Journal on Advances in Signal Processing, 2019
In active sonar systems, the detection of echo from targets can deteriorate due to reverberation. Detection becomes more difficult if targets have low-Doppler frequency and are located near the reverberation band, especially in an environment with low ...
Seokjin Lee, Jun-seok Lim
doaj   +2 more sources