以下为句子列表：
英文: Abstract: With a view of time-varying characteristic of the v ibration signal measured on reciprocating machinery and a brief introduction to the wavelet analysis and a nonlinear wavelet denoising theory, the paper makes an approach, by taking an triplex
中文: 文摘:针对往复机械振动信号的非平稳时变特点,本文在简述小波分析及非线性小波消噪理论的基础上,以重型机械使用的三缸泵为例,研究了用非线性小波消噪方法提取往复机械状态下的波形特性。
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英文: Focused on the wavelet analysis in image enhancement, noise reduction, compression and fusion.
中文: 重点论述了小波分析在图像增强、降噪、压缩和融合中的应用。
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英文: In light of the limitation of Fast Fourier Transform (FFT) for the method of traditional spectrum analysis to analyze the unsteady signal, wavelet and wavelet analysis are made for the typical unsteady process signal of starting up and shut down with the
中文: 摘要基于李家峡水电站双排机组振动的现场试验研究，并且针对传统频谱分析方法傅立叶变换(FFT)对于非平稳信号已力不从心这一缺陷，利用小波分析方法在时域和频域上同时具有良好的局部化性质，通过对开停机这一典型非平稳过程信号进行小波及小波包分析，将其分解到不同频带内，获取微弱信息和提取优势频率，并对其作振源分析，得出开停机初始时刻因水流不稳均出现强烈的振动现象，且低频段信号能量最大，开停机过程水流脉动压力和尾水涡带摆动是引起定子基础振动的主要原因。
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英文: The wavelet analysis and data processing was made based on sampled data stylebook in order to forecast disaster.
中文: 并对采集到的数据样本进行小波分析与处理，预报灾害。
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英文: Application of wavelet analysis to sequence stratigraphic division of high resolution sequence stratigraphy;
中文: 测井信号小波分析在高分辨率层序地层划分中的应用
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