在分频多任务（用于模拟讯号），信道切割成次信道，每个信道具有不同的频率宽度，指定给特定的讯号。
In FDM (typically used for analog signals) the channel is subdivided into subchannels, each with a different frequency width that is assigned to a specific signal.
前面板控制允许用户设置脉冲宽度与频率或先设置频率与占空因数，再设置脉冲宽度。
The front panel controls allow the user to set pulse width and frequency independently, or to set frequency and duty cycle, which then sets the pulse width accordingly.
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。
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.
现实中的信号由各种频率的正弦波组成，因此，在有限的波长数后，它们会干涉相消，你就得到一个有限宽度和有限延续的信号。
Realistic signals are made by summing sine waves of lots of frequencies, so that after some finite number of wavelengths they interfere destructively and you get a signal of finite width and duration.
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。
Therefore, it would be desirable to provide a phase frequency detector that has a controllable minimum pulse width.
为了解码需要样品的宽度文件(比特数)，和采样频率(赫兹)，和本的信道数。
In order to decode the file you need the width of the samples (number of bits), and the sampling frequency (Hertz), and the number of channels present.
快速傅立叶变换用到的窗宽度长度有限，因此不能获得完美的频率分辨率。
In STFT is window is of finite length, and we no longer have perfect frequency resolution.
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。
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.
在用逻辑分析仪测试数字系统时，为了提高逻辑分析仪的分辨力，会产生采样频率、存储容量与采样时间窗口宽度之间的矛盾。
There will be an antinomy among sample frequency, memory capacitance and the width of window of sample time for developing the resolving power of LA while we taking the LA to test an digital system.
本文利用有限元法分别计算在不同的裂纹深度、不同的裂纹开口宽度的情况下梁的固有频率。
The natural frequencies of beam are calculated with finite element method in the cases of different crack width and different crack depth.
先进的量测能力提供对RF功率，频率，脉冲间距，脉冲宽度和VS WR的精确数字读取。
Advanced measurement capability provides precise digital readout of RF power, frequency, pulse spacing, pulse widths and VSWR.
如何实现极窄的通带宽度和极小的中心频率偏差是研制中所解决的关键技术问题。
The key technique of this new filter is how to achieve the extreme narrow band-pass width and a slight deviation of central frequency.
根据该方法，相对过阻尼系数能够表示成检波器响应曲线的半峰高宽度和检波器自然频率乘积的线性函数。
According to the method, the relative overdamping can be expressed in a linear function of the product of the width of half peak of the response curve by the nature frequency of the geophone.
频率通过用可编程器件EPLD控制，而脉冲信号的宽度和幅度通过多路模拟开关和数字电位器调节。
The pulse frequency can be selected by EPLD. The voltage amplitude and pulse width of analog pulse can be adjusted by analog switches and digitally controlled potentiometers.
在实用最高频率下、在不同输入功率时实测了的尖峰电压的宽度。
Also the peak voltage width is tested under different input power at the highest frequency and the difference is analyzed.
进一步，研究了射频频率对极板电位、鞘层宽度、极板上入射离子的能量分布和角度分布的影响。
Furthermore, we study the effects of various rf frequency on the voltage at the electrode, the sheath width, the IED and IAD impinging on the rf-biased electrode.
为了满足引信用脉冲式半导体激光器驱动电路的脉冲宽度可调、频率可调、功率可调的需要，根据LD驱动电路的工作原理，建立LD驱动电路的一般模型，并进行了仿真分析。
In order to meet the needs of variable pulse width, frequency and power for laser fuze, a model of the LD driver circuit is built up based on its principle.
纤维长度和宽度的频率分布符合造纸原料的要求。
The frequency distribution of fiber length and width accords with the demands for paper-making raw materials.
这些参数包括输出脉冲的频率、宽度和不同极性的两个脉冲间隙。
The parameters such as frequency, width of each pulse and the interval between successive pulses with inverse polarity can be changed easily in program.
之后阐述了脉冲宽度调制和脉冲频率调制的工作原理。
Then the principle of Pulse Width Modulation and Pulse Frequency Modulation is analyzed in detail.
本文分析了光陀螺中由于有限光束宽度对拍频频率的修正因子。
In this paper we analyze the frequency correction caused by a finite beam width in an optical gyro.
现代无线通信要求频率综合器同时满足快速切换时间，小信道宽度和低噪声性能三方面的要求。
Modern wireless communication requires that the frequency synthesizer should have fast settling time, small channel width and low phase noise.
介绍了具有频率测量、脉冲周期测量、脉冲宽度测量以及脉冲信号占空比测量等功能的数字频率计。
It introduces a digital cymometer which has the functions of frequency measuring, pulse cycle measuring, pulse width measuring and pulse signal ratio measuring.
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。
The present invention relates to electronic circuits, and more particularly, to phase frequency detectors that generate signals having minimum pulse widths.
我们用频带宽度这个词来代表这样的频率范围。
We use the term bandwidth to represent such a frequency range.
应用中断控制技术测量不同频率方波信号的脉冲宽度。
The pulse width measuring of the different frequency square wave signals was done by using interrupt control technology.
此外，对激光脉冲宽度及脉冲频率对焊缝宽度的影响作了深入研究。
In addition, the changes of the laser pulse width and pulse frequency to affect the weld width were investigated.
相对而言，初始频率啁啾对输出孤子宽度的影响较大，但对输出孤子质量的影响并不严重。
The initial frequency chirp of the input pulse has a larger influence on the output pulse-width but a small influence on the output soliton-quality.
对这些仿真信号进行短时傅里叶分析，求出相应的最大频率、平均频率和频谱宽度等曲线。
The relative waveforms, such as maximum frequency, mean frequency and bandwidth, were obtained using the short time Fourier analysis of those simulated signals.
对这些仿真信号进行短时傅里叶分析，求出相应的最大频率、平均频率和频谱宽度等曲线。
The relative waveforms, such as maximum frequency, mean frequency and bandwidth, were obtained using the short time Fourier analysis of those simulated signals.
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