After comparing the FFT (fast Fourier transform) and WT (wavelet transform), this paper gives the selection firstly. WT is chosen to analyse the pressure response signal from the EHS.
本论文在试验阶段，首先对傅立叶变换和小波变换进行了对比，选择用小波变换来分析从电液伺服系统提取的压力信号。
The discrete wavelet transform (DWT) is used to analyse the spectra of pollution clouds in complicated environment and extract the small features.
应用离散子波变换进行污染云团红外光谱信号分析及特征提取。
Base on that, the application of wavelet transformation in fault diagnosis to analyse nonstationarity of roller bearing vibration signals with Daubieches wavelet is introduced.
针对轴承振动的非平稳性特点和频谱成分的混杂性，提出了基于小波的信号自适应阈值降噪法。
In this paper, taking account of the features of pitch and Chinese speech, we apply the Wavelet decomposition technique to analyse the pitch of Chinese speech.
本文结合语音信号中基音频率的频域特征及汉语语音的特点，利用小波分析技术，对汉语语音中韵母的基音频率等信息的提取进行了研究。
The paper introduces a method of using multisensor to detect running state and using the wavelet packet transform to analyse the signals. In the ends the character frequ…
介绍了采用多传感器对采煤机的运行状态进行监测，通过小波包对监测信号进行分析，得到其特征频率信息，以达到对其早期故障的预测。
Wavelet analysis and wavelet denoising was applied to analyse the data of two dimensional correlation ir spectroscopy of traditional Chinese medicine for the first time in this article.
采用小波变换消噪技术首次应用到中药二维相关红外光谱的数据处理中。
Wavelet analysis and wavelet denoising was applied to analyse the data of two dimensional correlation ir spectroscopy of traditional Chinese medicine for the first time in this article.
采用小波变换消噪技术首次应用到中药二维相关红外光谱的数据处理中。
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