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1)  Fourier space-time transform
傅里叶时空变换
1.
This paper is mainly on theoretical research of femtosecond laser pulse Fourier space-time transform shaping.
本论文主要是关于飞秒激光脉冲傅里叶时空变换整形的理论研究。
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2)  Short time Fourier transform
短时傅里叶变换
1.
A Surface EMG signal identification method based on short time fourier transform is presented in this paper.
针对肌电信号的非平稳特性 ,采用短时傅里叶变换方法对表面肌电信号进行分析 ,并通过奇异值分解有效地提取特征矢量进行模式识别 ,能够成功地从掌长肌和肱桡肌采集的两道表面肌电信号中识别展拳、握拳、腕内旋、腕外旋四种运动模式。
2.
This paper designs a sort of spectral analyzer utilizing the concept of software defined radio,and find several motheds to solve the window effect of the short time Fourier transform.
本文利用软件无线电的思想设计完成了一种语图仪,并针对短时傅里叶变换的窗效应,对其进行了改进。
3.
Digital image technology was adopted to extract the characteristics of the Morse signal based on a three-dimensional spectrum formed by a short time Fourier transform.
基于短时傅里叶变换形成的三维谱图,采用数字图像处理的方法提取信号的特征。
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3)  short-time Fourier transform
短时傅里叶变换
1.
On window parameter selection of short-time Fourier transform with Gaussian window in detection of LFM signals;
基于LFM信号检测的高斯窗短时傅里叶变换的窗参数选择
2.
The effect of analysis window selecting of short-time Fourier transform to the result of time-frequency analysis spectrum was discussed,and the conclusion that Hanning window has better time-frequency centralizing in analysis was gotten.
利用联合时频分析对CO2焊接过程电信号进行研究,分析了短时傅里叶变换窗函数的选择对谱图的时频集聚性的影响,并选择汉宁窗获得了较好的时频集聚性。
3.
It is well known that the short-time Fourier transform (STFT) is a transformation method used for timefrequency analysis of signals.
众所周知,短时傅里叶变换是信号时频分析的变换方法。
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4)  STFT
短时傅里叶变换
1.
A Novel STFT of Window Duration Increasing Optimization Based on Instantaneous Frequency;
基于瞬时频率的窗宽递增寻优的短时傅里叶变换
2.
Real-time Parameter Estimation of Torpedo Homing Signal Based on STFT and its Application
基于短时傅里叶变换的鱼雷自导信号参数实时估计及应用
3.
Here, based on the research of time domain and frequency domain properties of EGG, the author applied the STFT method to analyse the EGG on time-frequency domain.
把短时傅里叶变换用于体表胃电时-频域分析,结果表明,利用短时傅里叶变换等时-频域分析,可以同时得到体表胃电信号的时域幅度变化和能量分布特征。
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5)  short time Fourier transformation
短时傅里叶变换
1.
The study explores the relationship between frequency spectra based on short time Fourier transformation (STFT) and Wigner_Ville distribution(WVD).
本文应用线性和二次时频表示的方法 ,包括 :线性时频分析方法短时傅里叶变换和二次时频表示魏格纳-维尔分布 ,进行了时变结构模态频率的辨识。
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6)  real time fourier transform
实时傅里叶变换
补充资料：时里白
1.白鱼的别称。太湖白鱼素称鱼中之冠，每年夏至后尤盛，称"时里白"。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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