Wavelet transform has the MRA characteristic and can make time - frequency analysis.

小波分析具有多分辨率分析和时频定位的特点,能够分析信号的局部特征.

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Give maintenance recommendation according to frequency Analysis, optimize compressor maintenance.

依据频率分析数据提供维护方面的建议, 优化压缩机的运用效率.

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A new method for further frequency analysis whose name is wavelet - cepstrum is established.

建立了一种新的二次频谱分析方法,首次提出了小波倒频谱的概念.

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The wavelet transformation by Gabor wavelet is applied to the time - frequency analysis of disperse plate waves.

基于小波变换和模态声发射理论,通过模态声发射试验的方法确定了管道中导波传播的频散特性.

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New Approach to inherent frequency analysis of elastic mechanism based on virtual prototyping is proposed.

对弹性机构固有频率的计算提出了一种基于虚拟样机的新方法.

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A method of frequency analysis is described for the simplification of a heat exchangerdynamic model.

通过频域分析,从理论上提出了一种建立管壳式换热器简化模型的方法.

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The development of time - frequency analysis has three periods: Fourier transform, short - time Fourier transform and wavelet transform.

时频分析方法经历了富氏变换 、 短时 富利叶变换、小波变换三个阶段.

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Time - frequency analysis is an efficient method in feature extraction for transformer partial discharge.

时频分析方法是变压器局部放电特征提取的有效手段.

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A new adaptive time - frequency analysis method, i . e . local wave time - frequency distribution , is put forward.

提出一种新的自适应时频分析方法-局域波法.

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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.

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