查询词典 wavelet

The wavelet packet analysis applied in fault diagnosis system is studied in this thesis. Using simulation fault data, uncalm and time difference vibration signal of sodium pump are decomposed on different levels and frequencies.

对小波包分析应用于故障诊断进行了研究，利用仿真出来的故障数据，将快堆钠泵非平稳时变振动信号分解到不同层次和不同频带上，有效地提取出反映钠泵不同故障的特征向量，在识别中得到了满意的结果。

The wavelet packet analysis applied in fault diagnosis system is studied in this thesis. Using simulation fault data, uncalm and time difference vibration signal of sodium pump are decomposed on different levels and frequencies. To picked-up the eigenvectors reflecting different fault of sodium pump with availability, simulation results have shown its satisfaction in the identification.

对小波包分析应用于故障诊断进行了研究，利用仿真出来的故障数据，将快堆钠泵非平稳时变振动信号分解到不同层次和不同频带上，有效地提取出反映钠泵不同故障的特征向量，在识别中得到了满意的结果。

The ripple of static trajectories by PPM field is nearly equivalent to the one by solenoidal magnetic field superposing the small wavelet.

利用电子科技大学编写的微波管模拟套装中的3维注-波互作用模块进行了静态轨迹计算，验证了理论推导。

It firstly computes the phase spectrum and then gets the solution of wavelet of time domain.

其是先提取子波的相位谱后再求解时间域的子波。

A wavelet domain solution combined with spatial correlation and fuzzy logic method for reverberation suppression and contrast enhancement was proposed.

针对声纳图像在生成和采集过程中产生大量的混响，提出了一种改进的基于小波系数相关性与模糊理论的声纳图像混响抑制与增强算法。

There arc different characteristics in the relationship of the wavelet transform coefficients and scale when the speech signal and the random noise are transformed on different scales, and the sonant and surd are also characterized with different features.

语音信号与随机噪声在不同尺度上进行小波变换时，其小波变换系数和尺度大小的特性关系存在着不同的特征表现，而且，浊音和清音也各有其特性。

Thats to say, the method of weighted autocorrelation function is adopted for sonant frames while the singularity detection theory of wavelet transform is adopted for transition frames of surd and sonant.

对浊音帧，采用加权自相关法进行检测；对清浊音过渡帧，则利用小波变换的突变检测原理进行检测。

That the procedure was constructed using wavelet neural network function of the source.

该程序是用小波函数构建神经网络的源程序。

Based on wavelet transform image denoising the Matlab program's source code, easy to use!

基于小波变换的图像去噪的matlab程序的源代码，很好用！

Usually, the Fourier transform and the wavelet transform can not most sparsely represent an image.

在图像处理领域，图像的稀疏表示有着重要的理论和应用意义。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。