The main parameters that effect horizontal resolution of migration imaging were identified as medium velocity, dominant frequency of seismic wavelet and aperture Angle of migration processing.
结果表明，影响偏移成像水平分辨率的主要参数是介质速度、地震子波主频和偏移处理的孔径角。
The vibrating signals collected from pump bearings by a velocity sensor were analyzed with short time Fourier transform(STFT), wavelet transform(WT) and wavelet packet transform(WPT) in the paper.
对磁电式速度传感器采集的水泵轴承振动信号分别进行了短时傅立叶变换、小波变换、小波包变换。
The effect of superficial gas velocity and static water height on the wavelet power spectrum is dis- cussed and the vibration mechanism of the tube is analyzed.
采用防水型加速度计，在不同工况下测定洗涤冷却管的振动信号，并用小波变换分析信号；讨论了表观气速和静态液位对小波功率谱的影响，分析了冷却管振动的原因。
A basic method of processing two phase flow signals was presented based on wavelet transform for measuring accurately solids velocity of two phase flow signals.
为了准确测量气固两相流的固体速度，介绍一种利用小波变换处理两相流信号的基本方法。
The multi-scale coherent eddy structure in turbulent boundary layer is detected through taking multi-scale wavelet coefficient of stream velocity component signal as characteristic quantity.
用流向速度分量信号的多尺度子波系数作为特征量检测平板湍流边界层多尺度相干结构。
The practical problems in the fault detection and fault location using the wavelet transform, such as the wavelet basis function, the initial data, the velocity of traveling wave are studied.
针对小波变换在故障检测与测距中应用的实际问题如小波基函数、小波变换初始数据、行波波速的选取等进行了研究。
Because the wavelet packet decomposition is very sensitive to signal of the strange point, this characteristics can be used to follow the velocity signal of motor vibration.
小波包分解本身对信号的奇异点十分敏感，此特点可以用来跟踪电机振动速度信号。
The quality of psedu-velocity depends on the result of log-constraining when wavelet was obtained, the quality of original stacking migration section and the selection of all processing parameters.
虚速度剖面制作质量的好坏主要取决于提取子波时测井约束的效果、水平叠加偏移剖面的质量、叠加速度的选取和平滑作用以及各处理参数的选择。
Wavelet transform is introduced into traffic flow data preprocessing to enhance data accuracy. And the BP neural network predicts the future traffic flow velocity using the historical data.
在数据预处理中引入小波变换对交通流数据进行消噪处理，以提高数据的准确度。
Wavelet transform is introduced into traffic flow data preprocessing to enhance data accuracy. And the BP neural network predicts the future traffic flow velocity using the historical data.
在数据预处理中引入小波变换对交通流数据进行消噪处理，以提高数据的准确度。
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