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.
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.
WVD很高的能量聚集性和很好的时频分辨率，极大地提高了故障信号特征提取的准确度。
Due to high temporal and frequency resolution and high energy focus, the accuracy of fault signal feature extraction is greatly improved by WVD.
对去噪后的心音信号，本文进行了短时傅立叶变换，不同长度的时间窗对应了不用的时频分辨率。
After denoising, it analyzes PCG signal by Short-Time Fourier Transform (STFT). Different window-width is corresponding to different time-frequency resolution.
构造局部余弦基字典，其对时间轴的分割适应于语音信号时频结构的变化，而且有较高的时频分辨率。
This paper introduced a local cosine-basis based dictionary, it segments the time frame and ADAPTS speech signal's changes of the time-frequency structure.
结果表明，重分配的小波尺度图能够以较高的时频分辨率表示轴承振动中的非平稳特征，反映轴承的多种故障，瞬时能量估计可以作为分析轴承状态的依据。
Results show that the reassigned scalogram has the signal feature in the time-scale plane with the high resolution, the transient energy evaluation has the transient feature in a more distinct as…
此方法回避了多维谱峰搜索和参数配对，克服了在短数据时离散傅立叶变换测频分辨率低和性能差的不足。
Without any spectral peak search and parameters pairing, the resulting method is computationally efficient with high resolution and small variance, even in the short data length.
特性及自动调节的时频窗，可以聚焦到信号的任意细节，但对高频信号的频域分辨率较低。
However, When dealing with high frequency signal, it has the drawbacks of low frequency domain resolution.
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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