.png){kind=icon}
返回
Compressive-sensing based damped multi-mode extraction with nonuniform spatial sampling
.png){kind=icon}
PRE
AI
DOI：10.1016/j.ymssp.2020.107410.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Multi-mode extraction is an important technique providing essential information for waveguide model validation and waveguide condition assessment. In this paper, an extraction method for damped multi-modes is proposed using randomly distributed nonuniform spatial samples. It addresses the problems of the conventional measurement method using uniform sampling, such as high sampling rate and large sample numbers. The proposed method is based on enhanced matrix completion (EMaC) which constructs a Hankel matrix by spatial signal. Using the measured nonuniform spatial samples, EMaC uses nuclear norm compressive sensing (CS) to reconstruct all entries of the Hankel matrix, from which the spatial signal is recovered and modes with their wavenumbers and attenuations are extracted. The bounds in terms of minimum sample numbers, spectrum separation and reconstruction error are analyzed by theory and quantified by simulations. Using the simulated data of a thin Titanium plate waveguide and the experimental data of a water-filled steel pipeline, the proposed method is shown to extract damped multi-modes using just 25% of the whole uniform samples set. The accuracy of wavenumber and attenuation estimates of the proposed method are found to be similar to the conventional method using uniform samples. (C) 2020 Elsevier Ltd. All rights reserved.
Keyword:
Compressive sensing
Nuclear norm
Nonuniform sampling
Wavenumber estimation
Damped mode
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
8.9
论文数:
1.3W
被引数:
6.6W
机构
引用论文
Solvent free tetrahydropyranylation of phenols and alcohols over zeolites HSZ as reusable catalysts
PREAI
分享收藏Anchoring of a Copper(II)–Schiff Base Complex onto Silica-Coated Ferrite Nanoparticles: A Magnetically Separable Catalyst for Oxidative C–O Coupling by Direct C(sp2)–H and C(sp3)–H Bond Activation.png)
Synlett
SynlettIF0
PREAI
分享收藏
查看更多内容