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 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；
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。
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。
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。
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。
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。
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。
Modulation of light refers to changing parameters of light wave such as amplitude, intensity, and phase, frequency, polarization, etc. to make it carry message.
光辐射的调制是指改变光波振幅、强度、相位或频率、偏振等参数使之携带信息的过程。
A phase frequency detector compares a reference clock signal to a feedback clock signal to generate pulses in one or more output signals.
相位频率检测器比较基准时钟信号和反馈时钟信号从而在一个或更多个输出信号中生成脉冲。
The present invention relates to electronic circuits, and more particularly, to phase frequency detectors that generate signals having minimum pulse widths.
本发明涉及电子电路，更具体地，涉及生成具有最小脉冲宽度信号的相位频率检测器。
On the NCI chip, the phase, frequency, andintensity of the reflected light from different points on the object isdetected and used to determine the exact distance of the target point.
NCI测量并分析不同点的反射光，通过相位、频率和亮度三个参数来精准确定目标点与镜头的距离。
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。
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。
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。
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。
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。
The filter has no fundamental frequency decay and phase delay, and all harmonics above2nd order are filtered.
该滤波器在基频处的幅值无衰减，相位无延时，能将2次以上的谐波全部滤掉。
Motor horsepower, voltage, phase and frequency.
电机马力(功率)，电压，相位和频率。
The effects of different oxidation voltage and pulsed frequency on microstructure, thickness and phase constitute of the coatings have been investigated.
试验研究了不同微弧氧化电压和脉冲频率对涂层微观形貌，涂层厚度及相组成的影响。
This modulation include either amplitude modulation or frequency(phase) modulation.
包括幅值调制和频率（相位）调制两部分。
Then, the phase estimator can further determine the phase of frequency response of OFDM channel.
此后，相位估计机可以进一步对OFDM信道的相频响应进行估计。
An algorithm suitable for carrier phase and frequency offset estimation in software radio is proposed.
提出一种适合软件无线电的载波相位和频差估计算法。
The DDS signal generator which can adjust signal phase, signal frequency and complex wave is designed.
最终实现频率、相位、复合波形皆可调节的直接数字合成的信号发生器。
Adopted elastic supporting and altered exciting manner, two phase vibration frequency degeneration of the motor is realized.
采用弹性支撑和改变压电陶瓷激振方式，实现了电机两相振动频率的简并。
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。
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