Improved shift-invariant sparse parsing of mechanical fault based on feature atom

C Han, W Lu, L Cui, L Song… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
In complex operating conditions, the monitoring signals of mechanical equipment are
susceptible to interference from multiple vibration sources and environmental noise …

A sea clutter suppression algorithm for over-the-horizon radar based on dictionary learning and subspace estimation

Z Chen, A Chen, W Liu, D Zheng, J Yang, X Ma - Digital Signal Processing, 2023 - Elsevier
Detecting a ship target by over-the-horizon radar (OTHR) is seriously affected by sea clutter.
This paper proposes a clutter suppression algorithm based on dictionary learning and …

Sparse representation of acoustic emission signals and its application in pipeline leak location

J Jiao, J Zhang, Y Ren, G Li, B Wu, C He - Measurement, 2023 - Elsevier
The acoustic detection of pipeline leaks is strongly influenced by the associated interference
and noise. In this paper, acoustic emission signals are analyzed using a sparse …

Multi-Subject Analysis for Brain Developmental Patterns Discovery via Tensor Decomposition of MEG Data

I Belyaeva, B Gabrielson, YP Wang, TW Wilson… - Neuroinformatics, 2023 - Springer
Identification of informative signatures from electrophysiological signals is important for
understanding brain developmental patterns, where techniques such as …

A maximum cyclic impulses energy ratio deconvolution fused with enhanced envelope derivative operator frequency spectrum for early fault diagnosis of rolling …

K Zheng, J Tang, Y Shi, F Tan, Y Bai… - … Science and Technology, 2023 - iopscience.iop.org
Blind deconvolution is a powerful tool for rolling bearing fault diagnosis. As one of
deconvolution methods, maximum second-order cyclostationarity blind deconvolution …

[HTML][HTML] A Sparse Representation-Based Reconstruction Method of Electrical Impedance Imaging for Grounding Grid

K Zhu, D Luo, Z Fu, Z Xue, X Bu - Energies, 2024 - mdpi.com
As a non-invasive imaging method, electrical impedance tomography (EIT) technology has
become a research focus for grounding grid corrosion diagnosis. However, the existing …

Sparse Dictionary Learning for Transient Stability Assessment

Q Wang, C Pang, C Qian - Frontiers in Energy Research, 2022 - frontiersin.org
Transient stability assessment (TSA) has always been a fundamental and challenging
problem for ensuring the security and operation of power systems. With more power …

Model-Driven Compressive Spherical Array Sampling of Base-Station-Antenna Near Field Using Accelerated Pseudo-Skeleton Tensor Approximation

W Sun, C Wu, Y Zhang, J Le Kernec, MA Imran - Authorea Preprints, 2023 - techrxiv.org
The near-field samples (NFSs) of base-station antennas are obtained by a circular array of
probes (CAP) in spherical array sampling systems. In order to reduce sampling time, this …

基于字典尺度自适应学**的欠定盲语音重构算法.

**嘉新, 魏爽, 俞守庚, 刘睿 - Telecommunication …, 2023 - search.ebscohost.com
针对欠定盲语音分离传统字典学**算法不能优化字典尺寸的问题, 提出了一种尺度自适应同步码
字优化(Scale Adaptive Simultaneous Codeword Optimization, SASimCO) 算法 …