Is the radian frequency deviation from the center frequency.
是角频率与中心频率的偏离值。
W is the radian frequency deviation from the center frequency.
W是角频率与中心频率的偏离值。
A developed linear VCXO with wide frequency deviation has acquired better results.
研制的宽频偏线性压控晶体振荡器取得了较好的结果。
Amplitude deviation, frequency deviation and phase deviation are basic power quality disturbances.
电力系统基波幅值、相位、频率扰动是最基本的电能质量扰动。
The estimation of frequency deviation range will be expanded with rational training sequence length.
同时通过合理设计训练序列的长度,可扩大频偏估计范围。
However we want to get the least absolute value of frequency deviation not the least square sum of it.
但是实际需要的是使频率偏差的绝对值最小而不是频率偏差的平方和最小。
The algorithm features the large estimation range for carrier frequency deviation and high estimation accuracy.
该算法具有较大的估计载波频率偏差的范围和较高的估计精度。
An improved pitch control scheme is presented by introducing a frequency deviation signal into the control system.
提出了一种改进的桨距角控制方案——将系统频率偏差信号引入桨距角控制系统。
This parameter is specified with a maximum and minimum frequency deviation, expressed in percent or parts per million.
此参数指定一个最高和最低频率偏差,以百分比表示或百万分之的。
A simple standard frequency tunable method which can be used to measure frequency switching time under the rated frequency deviation is presented.
描述了一种能在额定频差下测量频率转换时间的简便方法——标频调偏法。
According to the fundamental principle of correlation function, the effect of measuring accuracy resulting from frequency deviation is analyzed in this paper.
从相关函数的基本原理出发,分析了频率偏移对信号测量准确度的影响。
Based on the complex magnitude of harmonic signals and under the condition of ideal synchronous samplings, an algorithm for computing the frequency deviation is proposed.
在理想同步采样的条件下,提出了一种基于简谐信号复幅度的频率偏差求取算法。
This paper gives an analysis of parasitic frequency deviation in the digital phase locked loop, which is one of the important specifications of modern communication systems.
本文分析了数字锁相环路的寄生频偏,它是现代通讯系统中频率合成器的重要指标之一。
The over-current relay works to protect oscillation tubes and rectifier, when the current exceeds its limits. Frequency deviation caused by faulty operation is also prevented.
当电流超过限制值时,过负荷电流继电器自动保护振荡管和整流器,同时可以避免由不当操作所引起的频率漂移。
This paper discusses the causes for limiting the enlargement of frequency deviation of voltage controlled crystal oscillator and methods for enlarging the frequency deviation.
首先讨论了限制压控晶体振荡器频偏扩展的原因,和扩展频偏的方法。
It has been proved that an improved FFT frequency correction technology, which makes carrier frequency deviation come into fast capture bandwidth quickly, is presented to correct frequency.
实践表明:利用一种改进的FFT校频技术对载波频偏进行一次校频,能使载波频偏快速落入锁相环快捕带内。
By comparison with other wavelet functions, trapezoid complex wavelet function has even frequency characteristic, and so trapezoid complex wavelet transform easily catch frequency deviation.
梯形小波函数具有平坦的频率特性,因而梯形小波变换较容易捕捉到信号的频率偏移。
Such problems as the attenuation of DC elements and Sine waveform, voltage sag and frequency deviation should be taken into account in order to analyze the transient process in the power system.
要分析电网的暂态特性,还必须考虑衰减直流分量和衰减正弦波,以及电压缺口和频率偏移等问题。
The Six Sigma Black Belt should be able to compute the mean and standard deviation from a grouped frequency distribution.
六西格玛黑带应该能够计算出一个分组发生频次分布数据的均值和标准偏差。
Master the instruments lists, including addition and retirement, tolerance, frequency, MU, deviation solving and prevention. To ensure compliance with GMP and HSE requirement.
负责仪表清单管理,新增和退役,公差定义,校验周期定义,不确定度计算,偏差解决和预防,确保其符合GMP和HSE的要求。
This algorithm needs shorter data window time and has higher calculation precision and is not affected by deviation of power frequency.
这种算法具有所需数据窗的时间短、计算精度高和不受系统频率偏差影响的优点。
Statistics histogram data processing scheme is designed. Standard deviation of frequency modulation is found out according to normal distribution characteristics.
设计了统计直方图数据处理方案,按照正态分布的特性找出了寄生频率调制的标准偏差。
At present, our country power quality national standard was chiefly stipulated five quotas: frequency, harmonic and voltage deviation, three-phase unbalance and the voltage fluctuation and flicker.
目前我国电能质量国家标准主要规定了五个指标:频率、谐波、电压偏差、三相不平衡及电压波动与闪变。
The principle of deviation information and method of computing frequency is given.
给出了该调制盘确定偏离信息的原理和频率的计算方法。
This article takes the system frequency response curves in vented box system as the target, to observe the changes by the effects from the deviation in ts parameters of drivers.
以开口箱的系统频率响应曲线为分析目标,要观察ts参数的偏差所产生的变化。
Not only the deviation of voltage and frequency from the rating value or other traditionally focused problems, but also the dynamic disturbance phenomena including oscillation and pulse are concerned.
人们不仅关注传统意义上的供电可靠性、稳定性以及各种参量偏离标称值问题,而且也对诸如振荡和脉冲之类的动态扰动现象开始重视起来。
They perform frequency, mean, minimum, maximum, and standard deviation analysis on attribute data and save the results in a new table.
这些工具完成对属性数据的频次、平均值、最小值、最大值和标准偏差的分析,并将结果存于一个新的表格中。
The power quality is denoted by the deviation of voltage, current or frequency, which makes electric equipments not work proper.
电能质量是指引起用电设备故障或不能正常工作的电压、电流或频率的偏差。
Due to errors of hydrological frequency calculation, the deviation between the estimated value and actual value causes the design of water conservancy projects to be insecure.
在水文频率计算中由于误差的存在,使得估计值与实际值之间存在偏差,这种偏差导致在水利工程设计中产生了不安全因素。
Transmitter has a high frequency stability and big FM deviation and can also operate under the changing of power supply voltage in the range of. 30%.
其发射机频率稳定度高,调制频偏大,在电源电压变化约30%的条件下亦能稳定工作。
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