现在我们有了信号的一个时频表示。
Now we have a true time-frequency representation of the signal.
教练在比赛即将结束时频 繁的轮换球员.
the coach rotates his players frequently near the end of the game. ;
提出一种基于时频原子方法的间谐波分析方法。
A new method to analyze inter-harmonics by time-frequency atom is proposed.
介绍了非平稳信号时频联合分析中的重排方法。
A reassignment method for nonstationary time-frequency joint analysis is introduced.
标准时间译码器是有源电视时频同步的专用设备。
The standard time decoder is a special equipment for active TV synchronization.
同时还讨论了时频分析方法在图象分析与处理中的应用。
We also discussed the applications of these methods on image analysis and processing.
提出了一种基于局域波时频图像的盲源分离故障诊断方法。
The blind source separation fault diagnosis method based on Local wave time-frequency images is developed.
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。
This paper proposes a new method based on time frequency analysis to detect spikes automatically.
它具有很高的时频分辨率、能量集中性和跟踪瞬时频率等特性。
It has the properties of high time-frequency resolution and energy concentration as well as tracking instantaneous frequency etc.
实际研究表明，时频分析方法能够解决很多生物医学信号问题。
It has been shown that many biomedical signal problems may benefit from time frequency analysis.
在频率选择性信道中，新编码策略可以获得空时频全分集增益。
The new coded strategy can achieve full space-time-frequency diversity over frequency selective fading channel.
结果表明，各种时频分析方法对零部件类型的敏感程度有所差异。
The results showed that the sensitivity of time-frequency methods on different type of components is different.
通过将多个时频分析的窗口重叠来克服时频分析中交叉项的影响。
By using multiple overlapped SPWVD Windows, the effect of cross-term interference in the time-frequency analysis was minimized.
钟控彩色电视同步机是为有源电视时频发播控制研制的设备之一。
The colour TV synchronizer controlled by a clock is one of control equipments developed for active TV synchronization.
时频分析方法已经在许多领域得到了应用，而且都取得了良好的效果。
Time-frequency analysis method has been applied in many fields, and it acquires a great of achievements.
由于胃电信号的非稳态和非线性，胃电信号时频参量的变化是非线性的。
Since EGG signals are non stationary and nonlinear, the time frequency parameters of them vary non linearly.
它不仅可以获得较好的时频分辨率，而且可以参数化描述任何类型的数据。
It can get not only high time-frequency resolution, but also parametric description of all kinds of data structures.
基于空间时频分布的盲源分离算法可以用来分离具有不同时频分布的信号。
Blind source separation (BSS) based on spatial time frequency distribution can separate signals with different time frequency distributions.
分析认为HHT是一种全新而更优越的分析与处理爆破震动信号的时频方法。
Therefore HHT was a kind of new time-frequency method for analyzing and processing the blasting vibration signals.
晶粒噪声和缺陷信号的时频特征的差异，为提高超声检测的信噪比提供了可能。
The time frequency difference between grain noise and defect signal provide a possibility for enhancement of signal-to-noise ratio (SNR) in ultrasonic testing.
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。
Time frequency analysis method is used to analyze the time domain and frequency domain of seismic waves at the same time according to the principle of wavelet transformation.
粗铝丝超声引线键合；换能器驱动电流；信号时频分析；特征提取；质量在线监测。
Aluminum wire ultrasonic bonding; transducer drive current; signal time-frequency analysis; feature selecting; quality online monitoring.
借助于雷达信号的时频分布图像，提出了一种在时频联合域上进行信号识别的新算法。
The authors propose a new method with combination of time domain and frequency domain by using the time-frequency distribution image of the radar signal.
利用小波变换所具有的良好的时频分析特性，实现了输入输出之间映射关系的多分辨学习。
The good localization characteristics of wavelet functions in both time and frequency space allowed hierarchical multi-resolution learning of input-output data mapping.
重点对广义解调时频分析方法应用范围、相位函数的选择等问题进行了讨论，得出了相应的结论。
Furthermore, its some problems, such as, the application range and the selection of the phase function are discussed and the corresponding conclusions are obtained.
从雷达多目标分辨的基本原理和方法出发，探讨了时频分析在雷达非刚性多目标分辨中的应用问题。
Combined with the basic principle and method of the radar multitarget resolving, the application of time frequency analysis is discussed for nonrigid multitarget resolving.
从特征信号提取的角度出发，采用局域波时频分析和信息熵结合的方法进行往复式压缩机故障诊断。
In the view of feature signal extraction, the local wave time-frequency analysis and information entropy were used to deal with fault diagnosis.
因此采用能反映时频非平稳特性的时变谱密度(即局部谱密度)来描述地震地面运动是非常必要的。
Consequently, it is necessary to describe earthquake ground motion with local spectral density, which is time-dependent and can reflect the non-stationary characteristics.
讨论了基于小波变换的时频分布级数，把一种新的时频分析工具——频率-切变分布应用于时频成像。
Time-frequency distribution series based on wavelet transform is discussed., and a new time-frequency tool: frequency-shear distribution is introduced into radar imaging fields.
讨论了基于小波变换的时频分布级数，把一种新的时频分析工具——频率-切变分布应用于时频成像。
Time-frequency distribution series based on wavelet transform is discussed., and a new time-frequency tool: frequency-shear distribution is introduced into radar imaging fields.
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