Results 1 to 10 of about 462,479 (185)

Motion Clutter Suppression for Non-Cooperative Target Identification Based on Frequency Correlation Dual-SVD Reconstruction

open access: yesSensors
Non-cooperative targets, such as birds and unmanned aerial vehicles (UAVs), are typical low-altitude, slow, and small (LSS) targets with low observability.
Weikun He
exaly   +4 more sources

Clutter suppression in ultrasound: performance evaluation and review of low-rank and sparse matrix decomposition methods [PDF]

open access: yesBioMedical Engineering OnLine, 2020
Vessel diseases are often accompanied by abnormalities related to vascular shape and size. Therefore, a clear visualization of vasculature is of high clinical significance.
Naiyuan Zhang   +2 more
doaj   +2 more sources

Sea Clutter Suppression Using Smoothed Pseudo-Wigner–Ville Distribution–Singular Value Decomposition during Sea Spikes

open access: yesRemote Sensing, 2023
The detection of small targets within the background of sea clutter is a significant challenge faced in radar signal processing. Small target echoes are weak in energy, and can be submerged by sea clutter and sea spikes, which are caused by overturning ...
Guigeng Li   +3 more
doaj   +2 more sources

Real-Time ECG Artifact Removal for Adaptive Deep Brain Stimulation: A Comparative Study [PDF]

open access: yesSensors
Background: Adaptive deep brain stimulation (aDBS) for Parkinson’s disease (PD) relies on accurate detection of beta oscillatory activity. However, electrocardiographic (ECG) artifacts frequently contaminate local field potentials (LFPs), compromising ...
Lucrezia Silvi   +5 more
doaj   +2 more sources

Suppression Method of Partial Discharge Interferences Based on Singular Value Decomposition and Improved Empirical Mode Decomposition

open access: yesEnergies, 2021
Partial discharge detection is an important means of insulation diagnosis of electrical equipment. To effectively suppress the periodic narrowband and white noise interferences in the process of partial discharge detection, a partial discharge ...
Linao Li, Xinlao Wei
doaj   +2 more sources

Noise Suppression for GPR Data Based on SVD of Window-Length-Optimized Hankel Matrix

open access: yesSensors, 2019
Ground-penetrating radar (GPR) is an effective tool for subsurface detection. Due to the influence of the environment and equipment, the echoes of GPR contain significant noise.
Wei Xue, Yan Luo, Yue Yang, Yujin Huang
exaly   +3 more sources

Transient Electromagnetic Data Noise Suppression Method Based on MPA-VMD-SVD

open access: yesIEEE Access
The transient electromagnetic method (TEM) is an efficient physical detection method widely used in underground space detection. However, electromagnetic noise interference poses significant challenges, as the TEM late signal is often submerged in noise,
Yang Zhang
exaly   +3 more sources

Orientation modulated piezoelectric patches for active vibration reduction of thick plates using a singular value decomposition-based optimization [PDF]

open access: yesScientific Reports
Active vibration reduction in thick plates remains a significant challenge in structural control. This study proposes a novel method for optimizing the orientation of piezoelectric sensor/actuator pairs to enhance vibration suppression.
Azin Nadi   +2 more
doaj   +2 more sources

Non-Local SAR Image Despeckling Based on Sparse Representation

open access: yesRemote Sensing, 2023
Speckle noise is an inherent problem of synthetic aperture radar (SAR) images, which not only seriously affects the acquisition of SAR image information, but also greatly reduces the efficiency of image segmentation and feature classification. Therefore,
Houye Yang, Jindong Yu, Zhuo Li, Ze Yu
doaj   +1 more source

Novel denoizing method for partial discharge signals using singular value decomposition and spectral subtraction

open access: yesIET Science, Measurement & Technology, 2023
Partial discharge (PD) detection is essential in assessing the insulation state of electrical equipment. However, PD signals are often overwhelmed by interference, resulting in inaccurate detection results.
Yifan Xu   +5 more
doaj   +1 more source

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