Results 11 to 20 of about 462,479 (185)

Enhanced Noise Suppression in Partial Discharge Signals via SVD and VMD with Wavelet Thresholding

open access: yesModelling and Simulation in Engineering
Partial discharge evaluation is a principal method for assessing insulation conditions in power transformers. Traditional singular value decomposition (SVD) approaches, however, face issues like high residual noise and loss of signal details in white ...
Hailong Wang   +6 more
doaj   +2 more sources

Study on Sea Clutter Suppression Methods based on a Realistic Radar Dataset

open access: yesRemote Sensing, 2019
To improve the ability of radar to detect targets such as ships with a background of strong sea clutter, different sea-clutter suppression algorithms are developed based on the realistic Intelligent PIxel processing X-band (IPIX) radar datasets, and ...
Mingjie Lv, Chen Zhou
doaj   +2 more sources

An Adaptive SVD-Based Approach to Clutter Suppression for Slow-Moving Targets

open access: yesRemote Sensing
The presence of strong clutter remains a critical challenge for radar system target detection. Traditional clutter suppression techniques such as Doppler-based filters often fail to extract low-velocity targets from clutter.
Yuhao Hou, Baixiao Chen
doaj   +2 more sources

Adaptive SVD Denoising in Time Domain and Frequency Domain

open access: yesApplied Sciences
In seismic data processing, noise not only affects velocity analysis and seismic migration, but also causes potential risks in post-stack processing because of the artifacts.
Meixuan Ren   +5 more
doaj   +2 more sources

BUILDING RECONSTRUCTION BASED ON A SMALL NUMBER OF TRACKS USING NONPARAMETRIC SAR TOMOGRAPHIC METHODS [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Nowadays, the synthetic aperture radar (SAR) tomography (TomoSAR) technique plays a notable role in the 3D reconstruction of urban buildings through several SAR acquisitions with slightly different positions.
M. Omati, M. M. Omati, M. H. Bastani
doaj   +1 more source

A Deep Nonlinear Subspace Modeling and Reconstruction for Diffusion-Weighted Imaging Using Denoising Auto-Encoder. [PDF]

open access: yesMagn Reson Med
ABSTRACT Purpose To present a novel, nonlinear subspace modeling and joint k–q‐space reconstruction technique for high‐resolution, multi‐band, multi‐shell diffusion‐weighted imaging (DWI). Methods High b‐value (> 1000 s/mm2), high resolution DWI has the drawback of generally low signal‐to‐noise ratios (SNRs).
Glaser J   +4 more
europepmc   +2 more sources

SVDmodel/SVD: GYE regeneration failure

open access: yes, 2021
Final version of SVD used for the regeneration failure study in GYE published at Global Change Biology. This version includes the SVD fire module, the matrix module.
SVD
core   +1 more source

Research on adaptive clutter suppression for ground penetrating radar based on wavelet transform and K-SVD

open access: yesJournal of Hebei University of Science and Technology, 2021
Aiming at the large amount of clutter and noise interference(mainly direct waves on the surface) in the original image of ground penetrating radar,an adaptive bilateral filtering method based on wavelet transform and K-Means singular value decomposition ...
Xueli WU   +4 more
doaj   +1 more source

Fractional Fourier Transform-Based Radio Frequency Interference Suppression for High-Frequency Surface Wave Radar

open access: yesRemote Sensing, 2019
High-frequency surface wave radar (HF SWR) plays an important role in marine stereoscopic monitoring system. Nevertheless, the congestion of external radio frequency interference (RFI) in HF band degrades its performance seriously.
Qing Zhou   +5 more
doaj   +1 more source

Optical coherence tomography image despeckling based on tensor singular value decomposition and fractional edge detection

open access: yesHeliyon, 2023
Optical coherence tomography (OCT) imaging is a technique that is frequently used to diagnose medical conditions. However, coherent noise, sometimes referred to as speckle noise, can dramatically reduce the quality of OCT images, which has an adverse ...
Ying Fang   +3 more
doaj   +1 more source

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