粗糙面的大小对振幅谱的影响不显著。
It is obvious that the asperity size effects on the amplitude spectrum.
主要应用傅立叶变换方法计算各种信号的振幅谱和相位谱。
This paper presents computation of the signal's amplitude spectrum and phase spectrum the Fourier transform.
采用振幅谱频率比方法，研究区域衰减效应和局部场地响应。
Furthermore, with the method of amplitude ratio with different frequency selected, the areal attenuation effect and local site response have been studied.
具体实现采用了多道谱平均法，以正确估算地震子波的振幅谱。
The specific measure taken is to average the multiple channel spectra so as to estimate correctly the amplitude spectra of seismic wavelets.
从视等厚层状吸收介质模型入手，理论计算了地震反射波的振幅谱。
Starting from the layer absorbing media model, the amplitude spectrum is calculated theoretically.
对核测井曲线进行付氏变换，其纵向分辨率可以从分析振幅谱斜率变化中获得。
Used Fourier transforming the nuclear logs, its vertical resolution can be achieved from analyzing the changes of amplitude spectrum slope.
在这类强迫方程的源项中包含了10类内波谱，这些谱最终均可利用内波的振幅谱表示。
There exist 10 spectra in the source terms of the nonlinear spectra equation, and all the unknown spectrum can be denoted in terms of the amplitude spectrum.
通过对一个球形信号进行傅立叶正反变换，发现用相位谱恢复的图形轮廓比振幅谱恢复的图形轮廓清晰。
Taking the sphere signal as an example, it is found that the phase spectrum is clearer than the amplitude one in resuming input signal.
位场信号的径向平均对数振幅谱可以由多条斜率不同的直线段拟合，直线的斜率即为相应的等效层的深度。
The radially averaged log amplitude spectrum of potential field can be modeled by lines with different slopes, which are the depths of the corresponding equivalent source layers.
使用相匹配滤波技术提取基阶面波振型的相位，然后再利用时变滤波进行振幅谱校正，以此分离出基阶振型面波信号。
Phase-matched filter is applied to extract phase of fundamental surface wave, and then time-variable filter is used to correct amplitude spectrum in order to isolate fundamental mode signs.
此方法对单波有很好的分解能力，能提供振幅谱、能量曲线及PRONY滤波剖面等三类显示，并具有较强的质控手段。
The method has good decomposing ability for a single wave, can provide three kinds of shows such as amplitude spectrum, energy curves and PRONY filtered sections, having a strong QC tools.
利用逆散射理论，通过测量离体血管的声散射场振幅谱的大小周期，重构了猪的主动脉离体血管的内外半径，重构参数的相对误差<4%。
Inverse scattering theory was applied to reconstruct the inside and outside radii of the aortic blood vessels of a pig by scattering spectrum. The relative errors of reconstruction were less than 4%.
根据子波振幅谱估算最小相位子波已有多种方法，本文对用希尔伯特变换法、同态法、零相位子波法、松弛迭代法等估算的最小相位子波，进行了详细的分析。
Among the methods for estimating the minimum phase wavelet from its amplitude spectrum, methods of Hilbert-transform, of homomorphy, of zero-phase wavelet and of relaxation-iteration are analysed.
我们用计算机计算了高能相对论电子通过我们设计的渐变振幅摆动器时的自发谱。
Using a computer, the spontaneous spectra produced by relativistic electrons traveling through a tapered amplitude helical wiggler are calculated.
从相应正弦波求得的振幅和相位变化率可以检测平面波的入射方向和功率谱。
Derection and power spectrum of an incident plane wave are estimated by evaluating amplitude and rate of phase change of the corresponding sinusoidal wave.
在液氮及水中进行了有限振幅声波的实验，观察到了次谐波分岔现象，得出了分岔谱。
The phenomenon of subharmonic bifurcation is observed in experiments of sound wave of finite amplitude, which are performed in liquid nitrogen and water, respectively. The power spectrum is obtained.
振幅、漫衍及谱稀度等的已经知统计特征的随机信号。
A random signal of known statistical properties of amplitude, distribution, and spectral density.
讨论了散射振幅的解析性质和波函数、能谱方程以及相移的非相对论近似。
The non-relativistic approximation of wave functions and energy equation and phase shifts are also studied.
提出在一次测量的谱干涉图中获取振幅和相位信息进行活组织细胞的表征新方法。
A new method for characterizing living tissue cells is demonstrated using both phase and amplitude information derived from the spectrally resolved interferogram in a single measurement.
发现自变陡效应使增益谱的谱宽变窄、振幅的增长速度减慢，而且其影响程度与色散缓变参量有关。
It is found that the main effect of self steepening is the reduction of the growth rate and the frequency range over which the gain occurs.
详细研究了振幅调制型“缺陷”的尺寸大小及调制幅度对受调制光束的光强分布和角谱影响。
The influence of the size and the modulation amplitude of the defects on the intensity distribution and angular spectrum of the beam is also studied.
计算中体现了空气冲击波与空腔壁作用后激发的强谱振幅高频冲击波。
High frequency with strong level induced by interacting shock wave to cavity wall was expressed in calculation.
在小振幅条件下，给出了摆动器的工作方程，导出了束电子的运动轨迹和自发辐射谱分布。
Under the condition of small amplitude, the operating equations of the wiggler are given, and then, the trajectories of the beam electrons and the angular spectrum of spontaneous emission are derived.
利用干涉图的零频分量消除光源谱分布的影响，获得两束干涉光的振幅比；
The effect of the light source spectral distribution can be cancelled out with the help of the zero order spectrum of the Fourier transform of the interferogram.
分析了发音持续时间、平均振幅、基音频率，第一共振峰和Mel频率倒谱参数，并基于模糊熵理论提取了各参数的权重。
The improved method based on fuzzy entropy, which analyzed and distilled the weight of speech duration, average magnitudes, pitch frequency, formants and Mel-frequency cesptral coefficients.
分析了发音持续时间、平均振幅、基音频率，第一共振峰和Mel频率倒谱参数，并基于模糊熵理论提取了各参数的权重。
The improved method based on fuzzy entropy, which analyzed and distilled the weight of speech duration, average magnitudes, pitch frequency, formants and Mel-frequency cesptral coefficients.
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