It is obvious that the asperity size effects on the amplitude spectrum.
粗糙面的大小对振幅谱的影响不显著。
Starting from the layer absorbing media model, the amplitude spectrum is calculated theoretically.
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。
Finally, the effect of striking force and striking point at string on the amplitude spectrum are discussed.
从理论和谱分析实验研究了钢琴的击弦点及击弦力度对钢琴幅度谱的影响。
This paper presents computation of the signal's amplitude spectrum and phase spectrum the Fourier transform.
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。
Then it studied the pulse waveform distortion from two aspects of the amplitude spectrum and phase spectrum.
随后从脉冲信号的幅度谱和相位谱两个方面研究了脉冲波形失真情况。
Amplitude response is one of the main characteristics of multichannel analyzer when measuring amplitude spectrum.
幅度响应是多道分析器测量幅度谱时的主要特性之一。
It is important that signals be reconstructed by making use of amplitude spectrum and partial time-domain sample.
利用幅度谐与部分时域采样值来重构信号是极为重要的。
A time history is synthesized from this amplitude spectrum and a random phase spectrum, combined with an envelope function.
据此幅值谱和一个随机相位谱,并与一个时程包络函数结合,合成一个子震时程。
Used Fourier transforming the nuclear logs, its vertical resolution can be achieved from analyzing the changes of amplitude spectrum slope.
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。
The paper, through analyzing the forming of the amplitude spectrum of the echo, proposed a new method using quadratic curve fitting for it.
本文针对这种情况,对连续波雷达回波频谱幅度产生原因进行分析,提出了二次曲线拟合频谱幅度来估计加速度的方法。
It has the ability of displaying the real time time-wave and amplitude spectrum, recording data, analyzing data and fault diagnosis efficiently.
它能实时显示波形频谱和数据记录,并有效地进行数据分析和故障诊断。
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.
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。
To detect the forged parts in a single image with copy-move attack, an autocorrelation detection method based on phase and amplitude spectrum of FFT is proposed.
针对一类单幅图像的复制遮盖篡改,提出一种基于快速傅立叶变换相位和幅度的自相关检测算法对篡改部位进行检测。
The Fourier amplitude spectrum used in a seismological model can be expressed as a product of source spectrum, propagation path factor and site effect in frequency domain.
在频域内,场地的地震动傅立叶幅值谱,可以表示为震源谱、传播路径影响因子和场地效应的乘积。
This paper describes the calculation method and process of stress amplitude and stress amplitude spectrum to evaluate the safety life time of steel structure for tower crane.
本文介绍了塔式起重机钢结构安全寿命评估中的应力幅及应力幅谱系数的计算方法和过程。
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.
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 amplitude spectrum line and the amplitude spectrum function are proposed for the airborne particle scattering light signal, and their properties are studied in probability space.
针对粒度仪标定的准确度 ,在概率空间基础上 ,提出了尘埃粒子散射光信号幅度概率谱线和散射光信号幅度概率谱函数的概念 ,并对谱线在概率空间下的性质进行了研究。
By the decomposition of the minimum and maximum phase components, the group of wavelets with the same amplitude spectrum and different phase spectrum could be found in cepstrum domain.
同态反褶积是一种利用复赛谱技术提取子波和进行子波反褶积的方法,它要求在频率域将子波相位正确地展开计算。
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.
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。
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.
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。
The signal's amplitude spectrum reveals that there are two main frequency, the higher is the probe signal's dominant frequency and the lower is the testing plane's free vibration frequency.
频谱分析表明测试信号中含有两个主频,分别对应发射探头的发射主频与测试面自振频率(采用ANSYS有限元程序作半空间体模态分析加以验证);
The main contributions of this thesis are summarized as follows: 1 Proposed a method using amplitude spectrum and reflective symmetry of key frames as gait features to recognize test sequence.
本文的主要贡献如下:1提出了幅值谱和反射对称作为关键帧特征的步态识别算法。
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.
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。
The paper expounds a way to get stress amplitude spectrum of main girders of overhead traveling crane through computer simulation combining virtual prototype technology and computer random simulation.
本文将虚拟样机技术与计算机随机模拟方法结合,探讨了通过计算机仿真的方法获得桥式起重机主梁应力幅谱的基本途径。
Taking the sphere signal as an example, it is found that the phase spectrum is clearer than the amplitude one in resuming input signal.
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。
Based on sea clutter reflectivity mechanism, this paper analyses the amplitude distribution characteristic, correlation characteristic and spectrum characteristic of sea clutter in depth.
基于海杂波散射机理,深入分析了高分辨雷达的海杂波幅度分布特性、相关特性和谱特性。
A method which makes use of the phase information of spectrum of radar echo amplitude signal to make azimuth super resolution is given.
本文介绍了一种利用雷达回波幅度信号频谱相位信息进行角度超分辨的方法。
The amplitude distribution, power spectrum and parameters are discussed briefly based on the return at a high grazing angle.
随后以大擦地角的回波信号为例,简要分析了杂波模型的幅度分布、功率谱和参数的特性。
The same method can be used to analyze the spectrum contents and amplitude of Multiple-bit DRFM.
可以用同样的方法来分析多位量化drfm的频谱含量及幅度。
The same method can be used to analyze the spectrum contents and amplitude of Multiple-bit DRFM.
可以用同样的方法来分析多位量化drfm的频谱含量及幅度。
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