[HTML][HTML] Underwater acoustic signal denoising model based on secondary variational mode decomposition

H Yang, W Shi, G Li - Defence Technology, 2023 - Elsevier
Due to the complexity of marine environment, underwater acoustic signal will be affected by
complex background noise during transmission. Underwater acoustic signal denoising is …

A new denoising method based on decomposition mixing of hydro-acoustic signal

G Li, H Yan, H Yang - Ocean Engineering, 2024 - Elsevier
Hydro-acoustic signal (HAS) contains abundant information. HAS denoising is of great
significance for accurate identification of underwater targets, research of military detection …

Corrosion evaluation of Aluminum 6061-T6 exposed to sugarcane bioethanol-gasoline blends using the Stockwell transform

CI Rocabruno-Valdés, RF Escobar-Jiménez… - Journal of …, 2020 - Elsevier
This research presents the study of the corrosion type and the corrosion rate (CR) by signal
processing of electrochemical noise (EN) of the Aluminum 6061-T6 (Al 6061-T6). This was …

A non-contacting leak fault diagnosis method for subsea Christmas tree valve based on deep neural network with skip connections

G Liu, X Zhang, D Ning, Y Chen, H Wang, B Cai - Ocean Engineering, 2023 - Elsevier
Due to the complex and diverse underwater environment, underwater acoustic transmission
is easily disturbed, absorbing many noise components. To deal with the complex noise …

Underwater ambient-noise removing GAN based on magnitude and phase spectra

H Ashraf, Y Jeong, CH Lee - IEEE Access, 2021 - ieeexplore.ieee.org
In this paper, an underwater ambient noise (UWAN) removing framework based on
generative adversarial network (GAN) to recover underlying ship-engine data is proposed …

A baseline drift removal algorithm based on cumulative sum and downsampling for hydroacoustic signal

D Wu, G Zhang, S Zhu, Y Liu, G Liu, L Jia, Y Wu… - Measurement, 2023 - Elsevier
Baseline drift is a widespread problem in a wide variety of signals and is traditionally
handled by using high-pass filtering to filter out the low-frequency portion. However, the …

Filtered-OFDM with channel coding based on T-distribution noise for underwater acoustic communication

MS Ahmed, NSM Shah, F Ghawbar, YA Jawhar… - Journal of Ambient …, 2022 - Springer
Bit error rate (BER) is typically high in underwater acoustic (UWA) channel, which is
characterized by high propagation delay and poor quality of communications. UWA noise …

DBSA-net: Dual branch self-attention network for underwater acoustic signal denoising

A Zhou, W Zhang, G Xu, X Li, K Deng… - IEEE/ACM Transactions …, 2023 - ieeexplore.ieee.org
Underwater acoustic signal denoising is a challenging task due to the complexity of the
underwater environment. Most of the existing methods cannot effectively cope with the …

An application of waveform denoising for microseismic data using polarization–linearity and time–frequency thresholding

J Akram - Geophysical Prospecting, 2018 - earthdoc.org
Noise suppression or signal‐to‐noise ratio enhancement is often desired for better
processing results from a microseismic dataset. In this paper, a polarization–linearity and …

Filter orthogonal frequency‐division multiplexing scheme based on polar code in underwater acoustic communication with non‐Gaussian distribution noise

MS Ahmed, NS Mohd Shah, YY Al‐Aboosi… - ETRI …, 2021 - Wiley Online Library
The research domain of underwater communication has garnered much interest among
researchers exploring underwater activities. The underwater environment differs from the …