描述了一种带相位因子的时频分析方法。
A method of signal time-frequency representation with phase factor is introduced.
这种方法为三维地震资料进行多维时频分析奠定基础。
This method can be generalized to multi dimensional time frequency analysis of 3D seismic data.
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.
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.
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.
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.
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.
针对运动目标参数估计问题，主要研究基于时频分析的参数估计方法。
The methods of motion parameters estimation are then investigated based on time-frequency analysis.
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.
时频分析作为分析时变非平稳信号的有力工具，成为现代信号处理研究的一个热点。
Now, Time-Frequency Analysis is one of the top interests in Signal Processing, and more and more research has been put on this topic.
本文介绍处理非平稳信号的新型工具——小波分析、短时付氏变换两种时频分析方法。
In this paper, two kinds of new time-frequency analysis approaches for non-stationary signal processing are introduced, which are wavelet transform and short-time Fourier transform.
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.
目的：分别对正常人和脑梗死患者颈动脉血流超声多普勒时频分析，为临床应用提供参考资料。
Objective: To analyze time frequence of carotid flow Doppler signal of normal and cerebral infarction cases, providing reference for clinical applications.
籍助对舰船噪声通过特性信号的时频分析，得到了若干典型舰船的噪声源强度谱纵向分布特性。
The longitudinal distributions of source intensity spectrum of several typical ships is given on the basis of time frequency analysis of the passage signature of ship radiated noises.
首先，对现阶段常用于声振信号分析领域研究的各种时频分析方法的优缺点进行了分析和比较。
First, Discuss the advantage and disadvantage of some methods of time-frequency analysis usually used in the field of signal processing on sound and vibration.
利用铁谱分析技术和振动分析技术中的时频分析方法研究了模拟点蚀故障齿轮磨损与振动的关系。
The relation of wear and vibration of gear of simulating pitting fault was studied by using ferrographic analysis and the time and frequency spectrums of vibration analysis technology.
通过研究网络流量的时频分析，提出了一种新的基于平滑魏格纳分布(WVD)的故障识别算法。
A novel fault identification algorithm based on smooth pseudo Wigner-Ville distribution (WVD) is proposed, which focused on the time-frequency analysis of network traffic.
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.
对不同的时频分析技术作了简要介绍，并对其优缺点、彼此间的相互关系进行了较为详细的论述。
This paper summarizes briefly different time-frequency analysis techniques. It discusses in detail the advantages and disadvantages of these techniques and their relations.
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.
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.
由于时频分析方法能同时提供振动信号的时域和频域信息，因而在滚动轴承故障诊断中应用最为广泛。
The time-frequency analysis method is widely applied to rolling bearing fault diagnosis due to it can simultaneously provide time and frequency domain information of a signal.
小波分析被誉为数学显微镜，其多分辨率分析和良好的时频分析能力为信号处理提供了新的有力工具。
Wavelet analysis is known as mathematical microscope, the multi-resolution analysis and a good ability of time-frequency analysis provides a new powerful tool for the signal processing.
小波分析被誉为数学显微镜，其多分辨率分析和良好的时频分析能力为信号处理提供了新的有力工具。
Wavelet analysis is known as mathematical microscope, the multi-resolution analysis and a good ability of time-frequency analysis provides a new powerful tool for the signal processing.
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