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- Superior mechanical and frequency characteristics. 机械强度高、高频特性优越。
- Linear and Stable High Frequency Characteristics. 稳定的线性高频特性。
- In a first approximation, the departure from a constant amplitude vs frequency characteristic will be a characteristics with a linear slop that will vary with time. 采用一级近似;则可认为对频率特性曲线的等幅偏移是一具有时变线性斜率的特性曲线.
- time frequency characteristic 时频特性
- Based on the local characteristics of signals, a local wave method (LWM) can be employed to obtain the instantaneous frequency of signals and the Hilbert time frequency spectrum composed of an energy time frequency three dimensional distribution. 局域波法是基于信号局部特征 ,通过该方法可得到信号的瞬时频率和构成能量 -时间 -频率三维分布的Hil bert时频谱。
- The human ear has the ability to efficiently separate necessary speech signals from a plethora of other auditory signals, even if these signals have similar overall frequency characteristics, and are perfectly coincident in time. 人的耳朵能从熙熙攘攘的声音中有效的捕捉到相对自己重要(感兴趣)的信息,即使是这些声音在频率上和时间上都配合得很“融洽”。
- 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。
- 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。
- With time-frequency analysis, the frequency characteristics of sound and the vibrational modes of a two-tone Chinese Peace Bell have been studied. 对?钟振动模式的研究表明，在正鼓激励时，不仅激起(2，0)a模式的振动，而且激起较强的(3，0)模式。
- 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。
- 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。
- Increasing the effective inductance makes it easy to control the cutoff frequency characteristics of the DGS planar circuits. 增加的等效电感可以容易控制DGS平面电路的截止频率特性。
- 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。
- Two operating characteristics of pulse detonation engine are analyzed: regulation operating frequency characteristics and flow control characteristics. 分析了脉冲爆震发动机的两种调节特性：变频特性和节流特性。
- The radar absorbing structure with active FSS whose frequency characteristics can be dynamically tuned is illustrated particularly. 重点介绍了频率特性可调的含主动式FSS的吸波结构。
- 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。
- 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。
- In another part of this thesis, we discussed and analyzed the reliability issues on the high frequency characteristics of MOS transistors. 另一方面，本论文也针对金氧半场效电晶体的高频操作下的可靠度做了一个完整的分析。
- Frequency characteristics of a flexible hub-beam system with an attached mass were studied by using a first-order approximation coupling model. 摘要本文采用一次近似模型研究了任意附加质量位置的中心刚体-柔性梁系统的频率特性。
- The time frequency analysis remedies the defect that short Fourier translation (SFT) has the same time resolution and frequency resolution to different frequency ranges. 该方法克服了SFT（短时Fourier变换）分析对高、低频段具有相同的时间分辨率和频率分辨率的缺点，弥补了小波变换只能粗糙地模拟基底膜带通滤波器特性的不足。
