1) time-frequency principal component analysis
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时频主分量分析
2) time and frequency analysis
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时频分析
1.
The study of time and frequency analysis,feature extraction,source locating and denoising of the original signal is described in detail.
在综合描述复合材料声发射信号特征和小波变换基本原理的基础上,本文总结了小波变换在声发射信号分析中的研究进展,并重点描述小波变换对复合材料破坏过程中声发射信号的特征提取、时频分析和信号除噪及声源定位方面的研究,提出了小波变换在声发射信号分析应用中需要进一步解决的问题。
3) time-frequency analysis
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时频分析
1.
Comparison between time-frequency analysis methods of yarn signal;
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纱线信号时频分析方法比较
2.
Dynamic signals' time-frequency analysis of resistance spot welding process;
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电阻点焊过程动态信号的时频分析
3.
Study on time-frequency analysis for acousto-ultrasonic testing signal in thin plates;
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薄板声——超声检测信号的时频分析研究
4) time frequency analysis
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时频分析
1.
Hilbert-Huang transform and time frequency analysis of magnetotelluric signal
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Hilbert-Huang变换与大地电磁信号的时频分析
2.
Then we process the real data in the method of the time frequency analysis.
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时频分析是近年发展起来的一个重要的、新的数学分支 ,目前已成为国际上极为活跃的研究领域。
3.
This can satisfy well time frequency analysis of multi graduation characteristic signal.
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时频分析方法是利用小波变换原理 ,从地震波的时间域和频率域同时对其作出分析。
5) time-frequency analysis
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时-频分析
1.
9202 working face across the upper remained coal pillar in Sanhejian Mine,the character of signals caused by different hypocenters had been summarized and abstracted by using the time-frequency analysis method.
以三河尖矿9202采面过上覆煤柱高应力区为背景,通过微震信号的时-频分析技术,总结提炼了不同微震信号的重要波形特征。
2.
Time-frequency analysis was used to assess changes in the dominant frequency within ECG recorded in dogs during trials of 10-30 s of VF.
在19只犬中建立正交心电图和心脏电除颤系统;诱发心室颤动持续10~30 s;使用时-频分析法分析心室颤动时频率的时频变化。
6) Time-frequency distribution
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时频分析
1.
The development of time-frequency distribution based EEG signal analysis and processing;
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基于时频分析的EEG信号分析处理方法研究进展
2.
Time-frequency distribution application research on rolling bearing fault diagnosis
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时频分析在轴承故障诊断中的应用研究
补充资料:时主
1.当代的君主。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条