A formula of phase spectrum density for transistorized amplifier is given.
本文给出了频标放大器输出级相位噪声功率谱密度的公式。
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。
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。
However phase spectrum contains all the relative information of signals, and there is more information in phase than in amplitude.
然而，相位谱实际上包含了信号的所有相对信息。
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 relative phase IP method, the relative phase spectrum IP method is developed. The formula of relative phase spectrum is defined.
本文在激电相对相位法的基础上提出了激电相对相位谱观测法，并定义了相对相位谱公式。
PRMF relative phase spectrum IP show the advantage of PRMF signal as source of electrical exploration, can play important in groundwater exploration, mineral exploration, and so on.
多频激电相对相位谱法充分发挥了伪随机多频信号作为电法勘探场源的优点，可在找水，找矿等勘探中发挥重要作用。
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。
PRMF relative phase spectrum IP method with PRMF signal as excitation has the same advantage of relative phase IP method, and offer rich information for the discrimination of anomaly source.
利用伪随机多频信号作为场源的多频相对相位谱观测法拥有相对相位观测法的优点，同时为异常源的区分提供丰富的信息。
The results of Strehl ration calculation after low-order modes and tilt part correction at varies atmospheric turbulent intensity and phase spectrum descend efficiency are discussed detailed.
给出了在各种不同大气湍流强度、不同相位谱空间频率的下降因子时，大气湍流相位波前低阶模式完全校正后和倾斜部分校正时的斯特列尔比的计算结果。
The results of coagulation spectrum and phase spectrum analysis give us that sea temperature changes in East equator Pacific region go 1.67-year ahead precipitation changes in Summer in Ningxia.
对凝聚谱和位相谱值的分析结果表明，赤道东太平洋地区海温变化超前宁夏夏季降水变化1.67年，这就为宁夏的夏季降水长期预报提供了依据。
In induced polarization method, multi-frequency relative phase spectrum method use above signal as field source, showed the advantage of PRMF signal used as field source for electrical exploration.
多频激电相对相位谱法采用上述信号作为场源，充分反映了该信号作为电法勘探场源的优点。
This paper presents the development of a pulse-echo measurement method, based on the use of a phase spectrum to determine the ultrasonic wave velocity. A detailed descripsion of the theory is given.
本文报道了一种基于脉冲回波相位谱的超声波速度测量方法，并给出了它的详细理论推导过程。
Using frequency spectrum analysis of phase function to calculate its auto power spectrum can reflect its frequency structure.
利用相函数的频谱分析求其自功率谱，可以反映它的频率结构。
The auto power spectrum of phase function commonly has two extreme frequencies, and the corresponding frequency components decide the peak characteristics of phase function.
相函数的自功率谱一般具有两个峰值频率，其相应的频率分量决定相函数的波峰特征。
Gas phase chromatography, mass spectrum and infrared spectrum are used to characterize the novel silanes structures.
应用气相色谱质谱和红外光谱表征了它们的分子结构。
This paper presents calculation of frequency and phase difference of flow signals with spectrum analysis on basics of Fourier transform (DFT).
本文采用基于傅立叶变换(DFT)的频谱分析方法，计算流量信号的频率和相位差。
This paper describes some methods, steps and attentions using a spectrum analyzer in phase noise measurement.
本文叙述了用频谱分析仪测量相位噪声的方法，步骤和应注意的问题。
The arrival of components must been picked for the method of maximum entropy and cross power spectrum phase.
最大熵与互功率谱相位法就是首先求出组分波的波至点。
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 relaxation spectrum of aqueous gelatin during its phase change from sol to gel was studied by dynamic light scattering technique (DLS, also known as PCS or QELS).
本文用动态光散射技术(DLS，又称为PCS或QELS)和粘滞测量技术，研究了明胶从溶胶到凝胶相变过程中的弛豫性质。
In this phase, iterative refinements of the product design get bogged down in new features, and there is no time for conducting full-spectrum user research.
在这个阶段，产品设计的不断优化就淹没在各种新的功能中了，也没有时间来执行完整的用户研究了。
This article introduces the principle and method how to measure phase noise with spectrum analyzer, and discusses the uncertainty factor and its evaluating method.
对基于频谱分析仪的相位噪声测试原理和方法进行了介绍，并对引起测试系统不确定度的因素及其评定方法进行了讨论。
The dispersion can change the phase of frequency spectrum component of the chaotic signal, however, it cannot affect the spectrum shape of the chaotic signal.
色散能够改变混沌信号每个频谱分量相位，但不影响混沌信号频谱形状；
The dispersion can change the phase of frequency spectrum component of the chaotic signal, however, it cannot affect the spectrum shape of the chaotic signal.
色散能够改变混沌信号每个频谱分量相位，但不影响混沌信号频谱形状；
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