Many dynamic calibration apparatus in the frequency domain can not give the phase-frequency response of the tested system.
许多频率域动态校准装置只能给出被校系统的幅频特性，缺乏相频特性。
The vibration were measured using capacitance-detecting technology to get the amplitude-frequency and phase-frequency characteristics.
用电容检测技术测量其振动信号，以获得传感器幅频、相频特性。
Frequency response analyzer is used to measure the amplitude-frequency characteristic and phase-frequency characteristic of the networks.
频率特性分析仪用于测试网络的幅频和相频特性。
The position of knee point of Phase-frequency characteristic mean value curve is invariant, but the kurtosis of the curve near the knee point decreases.
刚度与质量参数随机时相频特性均值曲线的拐点位置不变，只是拐点附近曲线陡峭度减小。
Some performances. such as amplitude-frequency, phase-frequency and noise-frequency in the case of"0"or"1 "phase status of transmit-receive channal are given.
给出了收发通过全“0”或全“1”移相状态下的幅相频率特性及噪声系数频率特性。
The Genetic Algorithm(GA) is used to optimize the pole-zero location in all-pass networks of 30 and 60 relative phase-shift, and good phase-frequency characteristics are obtained.
然后利用遗传算法分别对30和60十倍频宽带相对相移网络的零极点参数值进行了优化，得到了较好的相位频率特性结果；
By theory analysis of divider transfer function of magnitude-frequency characteristics and phase-frequency characteristics, a new method equalizing stray capacitance could be conclude.
并且通过对分压器传递函数的相频和幅频特性进行理论分析，提出一种分布电容补偿的方法。
The study on speech signal formant abstracted by LPC shows that it can also be abstracted by adopting phase-frequency characteristics and logarithmic amplitude-frequency characteristics.
通过对LPC(线性预测编码)方法提取语音信号共振峰进行的研究表明，采用相-频特性与对数幅-频特性同样能提取语音信号共振峰。
The phase-frequency and amplitude-frequency responses of the system were analyzed and experimented, which reasonably explains why the hysteretic curve changes with input signal frequency.
文中对所建立的系统进行了相频和幅频特性的理论分析和实验，合理地解释了此系统的迟滞曲线随输入信号频率变化的原因。
It completes the system control software and FPGA control logic design, and achieves the data-processing function of amplitude and phase-frequency testing, parameter storage, calculation of Q-value.
完成了系统控制软件和FPGA控制逻辑设计，实现了幅频和相频测试，参数存储，Q值计算等数据处理功能。
An analog signal is composed of four basic components: DC and AC magnitudes, frequency, and phase.
模拟信号由直流和交流分量、频率和相位四部分组成。
Typical smart meter designs include periodic transmission of current, phase, and frequency data from the user to the electricity distribution company.
典型的智能度量设计包括来用户端的电流、相位和频率数据向电力调配公司的周期传送。
And the phase velocity of fast wave will decrease exponentially with frequency.
快纵波的相速度随频率的增大以指数形式减小。
It can measure the magnitude characteristic, phase characteristic and limiting frequency of a system.
它能直观的测试一个系统的幅频特性、相频特性和截止频率。
Color synchronous signal is setup to resume subcarrier color signal as same frequency and phase in receive end, which is suppressed in send end.
色同步信号是为了在接收端恢复与发送端被抑制掉的色副载波同频同相的载波而设置的。
Verify ac line voltage phase and frequency with the controller data plate on the enclosure door prior to connecting ac power.
在连接交流电源之前，请验证交流电压、相位和频率是否与控制装置外壳门参数板上的相应数据相同。
According to some embodiments of the present invention, a phase frequency detector includes a temperature sensing circuit.
依照本发明的某些实施例，相位频率检测器包括温度感测电路。
The paper introduce the concepts of timing parameters, including: jitter, phase noise, skew, frequency stabilization, and the relationship between them.
本文介绍了时钟网络中抖动、相位噪声、偏移、频率稳定度等参数的概念以及它们之间的转换关系。
Contrast, spatial frequency, presentation time, moving velocity and phase reversal frequency of each grating are controlled independently.
每组光栅的对比度、空间频率、显示时间，移动速度和反相频率能单独控制。
The analysis of vibration is introduced by its three factors-vibration amplitude, frequency and phase.
针对振动的三要素即振幅、频率及相位分别做了介绍；
Therefore, it would be desirable to provide a phase frequency detector that has a controllable minimum pulse width.
因此，需要提供具有可控制最小脉冲宽度的相位频率检测器。
The existence of various lacunas in bolt bonding system will cause the acoustic wave energy attenuation, phase aberration and frequency dispersion.
由于锚固体系中有不同大小和程度的缺陷，声波在传播过程中将产生能量衰减、相位突变及频散现象。
In a drive system of power transistor inverter-motor, not only can it be used in fine control of motor current waveform, phase, amplitude and frequency, but can also be used to sense, fault current.
在大功率晶体管逆变器——电动机驱动系统中，它不但可用来对电动机电流的波形、相位、幅值和频率进行精细控制，而且能快速地检测出故障电流。
DDS technology can switch frequency fastly in phase continuous.
应用dds技术可实现相位连续的快速频率切换。
DDS is an advanced technique on frequency synthesis, whose primary advantages are controlling facility, continuous phase and fine frequency resolution.
DDS技术是一种先进的频率合成技术，其主要优点是易于程控，相位连续，输出频率稳定度高，分辨率高。
FIG. 3 is a timing diagram that illustrates an example of a minimum pulse width in the DN output signal of a phase frequency detector, according to an embodiment of the present invention.
图3是依照本发明实施例的时序图，其图示说明相位频率检测器的DN输出信号中最小脉冲宽度的示例。
The phase frequency detector adjusts the minimum pulse width of the one or more output signals using the temperature sensing circuit to compensate for temperature variations.
相位频率检测器用温度感测电路调整一个或更多个输出信号的最小脉冲宽度从而补偿温度变化。
In this thesis, we brought out an effective method capable of raising maximum oscillation frequency with good phase noise.
在本论文中，我们提出了一个有效的方式把振荡频率提高且有不错的杂讯表现。
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。
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。
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