[PDF][PDF] 混沌奇异谱特性研究及在滚动轴承故障诊断中的应用

张淑清, 贺朋, 左一格, 陈荣飞, 张赟, 刘婉, 姜万录 - 中国机械工程, 2018 - qikan.cmes.org
燕山大学电气工程学院, 秦皇岛, 066004 摘要: 研究了混沌空间结构的一种新的度量方式——
混沌奇异谱, 并提出一种基于混沌奇异谱特征提取的滚动轴承早期故障识别算法 …

[PDF][PDF] Study on characteristics of chaotic singular spectrum and applications in rolling bearing fault diagnosis

张淑清, 贺朋, 左一格, 陈荣飞, 张赟… - China Mechanical …, 2018 - qikan.cmes.org
A new metric of chaos space structure-chaotic singular spectrum was researched and an
early fault recognition algorithm for rolling bearings was proposed based on chaotic singular …

Comparison between statistical and principal component analysis in reduction of near‐field FDTD data

GL Ramos, GF Rodrigues, FM Camilo… - IET Microwaves …, 2019 - Wiley Online Library
We present a comparison of statistical and principal component analyses (PCA) for reducing
the amount of near‐field data required as an input to a time‐domain spherical‐multipole …

Near-to-far-field transform sample reduction through statistical analysis

FME Camilo, CG do Rego, GL Ramos - 2018 - IET
Techniques such as the Finite-Difference Time-Domain (FDTD) method have been largely
used to study Ultra Wide Band (UWB) antennas. However, those time-domain techniques …

Expansão em multipolos esféricos no domínio do tempo aplicada à transformação campo próximo-campo distante

FME Camilo - 2018 - repositorio.ufmg.br
Este trabalho consiste de várias análises, testes e estudos que visam gerar conhecimento e
meios úteis para acelerar a execução computacional da transformada de campo próximo …

[PDF][PDF] Performance of the Principal Component Analysis (PCA) Technique on a FDTD/WP-PML Code: Near Field Data Reduction of a Complex Antenna

GL Ramos, GF Rodrigues, CG Rego - researchgate.net
A frequency-domain near-to-far-field algorithm running together with a principal component
analysis (PCA) signal processing technique is introduced in this paper. Such approach is …