信号的瞬时相位特征与其它特征相比最容易受噪声影响。
The instant phase feature of signal, to be affected, is easily by noise.
声源激发的电磁波在频率与相位特征上不同于转换电磁波。
The electromagnetic wave radiated by the acoustic source is evidently different from the converted electromagnetic wave in frequency and phase.
在两个人脸库上的实验都表明，幅角特征要优越于相位特征。
Experimental results on both two face databases show that argument features are superior to phase features.
通过检查初始相位特征信号，解决了由相位开关技术产生的初始相位不确定性问题。
The uncertainty problem of the initial phase due to the phase switching technology is solved by checking the characteristic signals of the initial phase.
涡流检测信号中的相位信息能反映检测系统的某些特性，讨论用数字相关法提取相位特征信息。
Digital correlation method was used to extract phase information as the phase information of eddy current testing signals could reflect the characteristics of detecting system.
工业锅炉的主要动态特性包括非线性、非最小相位特征、不稳定性、时滞和负荷干扰，采用传统控制方法难以实施有效控制。
The major dynamics of a boiler include non-linearity, non-minimum phase behavior, instability, delay and load disturbance. The traditional control strategy could not offer satisfactory result.
实验证明，该算法不但能克服相位一致性的局限性，还提高了特征的定位精度和抗噪性能。
Experiments show that this algorithm not only can overcome the limitations of phase congruency, but also can improve the location accuracy and anti-noise ability.
双谱是一种平移不变的特征，含有丰富的相位信息，但它是二维函数，不利于模板匹配。
Bispecra is a translation-invariant character, contain abundant phase information, but it is two dimension, and misfit board match.
雷达回波信号中，除幅度、相位和多普勒频移外，还存在第四特征——极化信息。
Besides amplitude, phase and Doppler frequency, polarimetric information is the fourth characteristic in the radar echo.
在故障时刻，无论故障相电压的相位处在何种初始状态下，都有零序电流反向的特征。
At the time of failure, no matter what kind of start state of voltage phase, the zero-sequence transient current has the characteristic of inverse phase.
相位对比成像是伦琴发现X线以来，人们对X线的成像特征、成像过程认识的拓展与深化。
Phase contrast technology is a development and deepening of peoples understanding of X-ray imaging characteristics and imaging process.
放电具有相位同步的特征。
Interspike interval (ISIH) presented the characteristics of phase locked.
鉴别器，鉴频器：一种将输入信号的某一特征，如频率或相位转变为幅度变化装置，其变化大小因信号与标准或参考信号的不同程度而异。
Discriminator: a device that converts a property of an input signal such as frequency or phase into an amplitude variation depending on how the signal differs from a standard or reference signal.
首先介绍从信号幅度、相位、频率及功率谱等特性中提取的三种特征参数，应用这三种参数采用人工神经网络对模拟调制信号进行了识别。
Three features parameters derived from the instantaneous amplitude, instantaneous phase, instantaneous frequency and power spectrum of analogue modulated signals are presented in this article.
对于电压凹陷的三大特征量幅值、持续时间和相位跳变的准确检测是电压质量评估与抑制干扰首先要解决的重要课题。
The correct detection of the voltage sag characteristics (its magnitude, duration and phase Angle jump) is of great importance for the power quality evaluation and its mitigation.
算法所用的小波变换相位信息特征对平坦衰落信道具有衰落不变性，对频率选择性衰落信道也具有很强的抗多径能力。
The phase information of wavelet transform used in the algorithm is invariant with respect to flat fading, and can resist multipath fading of frequency-selecting channel in quite a few degree.
相位信息是电力系统的一个重要特征，正交或双正交的复小波是实时提取电力系统中相位信息的有力手段。
Phase information is one of emphasis characters in the power system orthogonal or biorthogonal complex wavelet is strong means to extract phase information in the power system in time.
方向性是ESPI条纹图与相位图的一个重要特征，对于指导滤波具有重要作用。
Directivity is a very important characteristic of ESPI fringe patterns and phase patterns, and it plays a very important role in directing the filtering process.
比较了近炮检距剖面、叠加剖面、偏移剖面、瞬时振幅剖面与瞬时相位剖面上BSR的显示特征。
The appearances of BSRs oon near-offset profile, stacked profile, migration profile, migration profile, instantaneous amplitude profile and instantaneous phase profile are compared and described.
图像特征检测是图像处理技术与应用的基础，而利用相位信息进行图像特征检测是新的研究方向。
Image feature detection is the basis of the techniques and applications of image processing. However, the use of phase information for image feature detection is a new research focus.
分析了图像信号相位信息的空间特性，以人脸图像为例，研究了相位信息在图像特征定位中的应用。
The space characteristic of phase information of image signal is analysed, and using face image as an example, the application of phase information in image feature location is studied.
最小脉冲宽度的变化可能不利地影响PLL的静态相位偏移和性能特征。
Changes in the minimum pulse width can adversely effect a PLL's static phase offset and performance characteristics.
该方法可以实现对单相电压凹陷幅值、起止时刻和相位跳变等特征量的动态检测。
It could dynamically detect voltage sag characteristics including sag amplitude, sag duration and phase jump.
在旋转电弧信号的频域分析中，其特征谐波的相位反映了焊缝方向与焊接方向的初始夹角。
In frequency analysis of rotating arc signal, the phase of harmonic characteristic reflects the initial Angle between weld direction and seam's direction.
研究了载荷的频率、相位等因素对波磨特征的影响，理论分析和试验结果相吻合。
The influences of frequency and phase Angle on the corrugation are studied. The numerical results show the same trend as that of experiments.
小电流接地系统发生单相接地故障时，故障线路与健全线路在特征频段内零序电流的相位差别是接地选线判据的重要依据之一。
The phase comparison between fault feeder and healthy feeder is one of important criteria in fault line selection for neutral non-effective grounding systems.
因此，新的停车场并未设计成传统室内汽车停车场，而是以双重入口为特征，入口通向两个停车场，互相位于彼此的上方。
Accordingly, the new car park is not designed as a classical parking garage but features a double entrance leading to two car parks laid on top of each other.
利用虚拟累量域波达方向矩阵的特征值的幅值和相位信息，就可以求出信号源的方位角和俯仰角。
The azimuth and elevation of the incident sources can be estimated respectively from the amplitude and phase information of the eigenvalues of the new matrix.
本文分析了驻波的形成及其振动、相位、波形、能量驻立的特征。使驻波实际应用中，有一个清晰的概念。
Theauthor quantitatively analysed the formation of stationary wave and its transmission without vibration, phase, wave form and energy to apply theory to practice.
本文分析了驻波的形成及其振动、相位、波形、能量驻立的特征。使驻波实际应用中，有一个清晰的概念。
Theauthor quantitatively analysed the formation of stationary wave and its transmission without vibration, phase, wave form and energy to apply theory to practice.
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