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- time frequency modulation 时频调制
- Frequency modulation does not allow static to creep in. 频率调制不允许静电干扰混入。
- Frequency modulation is not possible with polychromatic light. 多色光不可能调制频率。
- Gauss linear frequency modulation wavelet is selected as base function to study wavelet spectrum, and its smoothed spectrum in time and frequency domain. 在前人工作的基础上,选用了高斯线调频小波作为基函数,研究了信号的小波谱,给出了小波谱在时间域及频率域的平滑谱并与傅里叶谱进行了比较。
- The figure below illustrates a simple frequency modulation architecture. 下面的图表列举了一个简单的调频结构体系。
- A new kind of time series, which is used as the ‘HRV Signals’ for the purpose of nonlinear dynamics analysis of HRV, is introduced based on the Integral Pulse Frequency Modulation (IPFM) model. 该时间序列对 于影响HRV的内在系统是一个更为直接的观察量,不但可以应用于非线性动 力学研究,还可以用于其它的一些分析方法。通过RR间期序列的功率谱与HRV 时间序列功率谱的对比,表明后者的功率谱具有较少的波峰数目和相对弱的宽 带特性,说明某些病例中RR间期的功率谱中的宽带特性是由于非线性观察函 数引起的,而不一定是系统内在混饨特性的反映。
- It is possible that the computer is of low grade, and the time frequency is too low, please change for a new computer. 有可能是主机档次太低,时钟频率过低,请更换主机。
- A method of representing data in magnetizable surface storage; for example,"modified frequency modulation". 在磁表面存储技术中一种表示数据的方法,例如改进型调频制。
- This paper proposes a new method based on time frequency analysis to detect spikes automatically. 本研究提出了一种基于时频分析的癫痫脑电棘波检测方法。
- A large proton synchrotron,uses frequency modulation of an electric field to accelerate protons. 一种大的质子同步加速器,用电域的调频加速质子。
- Secondly, to the nonstationarity of diesel engine noise, this paper focuses on the extraction of time frequency feature using wavelet scalogram. 其次针对噪声信号的非平稳性,研究基于小波尺度谱噪声分量的时频特征分析。
- A method of representing data in magnetizable surface storage;for example, " modified frequency modulation" . 在磁表面存储技术中一种表示数据的方法,例如改进型调频制。
- M. Akay, "Time Frequency and Wavelets in Biomedical Signal Processing," Endorsed by IEEE Engineering in Medicine and Biology Society, pp.211-420, 1998. 翁国正,“应用小波系数临界法于消除助听器背景噪音之技术”,国立成功大学电机工程学系硕士论文,民国九十二年。
- American engineer and inventor whose improvements to radio communication included the development of frequency modulation(1933). 阿姆斯壮,奈尔·奥尔登生于1930美国宇航员,他森身为阿波罗11号指挥官,成为第一个登上月球的人(1969年7月20日)
- Taking Time Frequency Distribution (TFD) of the radar signal as an image, the method uses image processing algorithm for extracting its singular value. 该方法把雷达信号的时频分布作为一幅图像进行处理,利用图像处理算法提取其奇异值特征。
- It is also required that the power station shall be capable of moderating with load peak, frequency modulation. 要求该电厂有调峰、调频的能力。
- As planetary healers, we must become aware of the galactic time frequency and learn how to use the natural harmonics of time to our advantage. 身为行星的治疗者,我们必须意识星际时间频率,学习如何使用自然和谐的时间,成为我们的优势。
- A method of representing data in magnetizable surface storage;for example"modified frequency modulation. 在磁表面存储技术中一种表示数据的方法,例如改进型调频制。
- It shows that since 1999 the seismic activity mainly belongs to the tectonic event based on a seismic spectral and time frequency analysis. 火山地震的频谱分析和时频分析结果表明,自1999年以来发生的火山地震主要为构造型火山地震。
- A method of representing data in magnetizable surface storage; for example, "modified frequency modulation". 在磁表面存储技术中一种表示数据的方法,例如改进型调频制。