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1)  frequency fluctuation
频率波动,频率起伏
2)  starting frequency
起动频率
3)  random frequency fluctuation
频率源随机起伏
4)  fluctuation frequency
波动频率
1.
The effects of distance between the feedback mirrors (plane mirror or phase conjugate mirror) and laser on the laser intensity fluctuation and fluctuation frequency are abserved.
报道了平面镜和自泵浦相位共轭镜反馈He-Ne激光器的非稳特性,观测了反馈镜位置对激光光强起伏及波动频率的影响,即在半腔长的整数倍附近,激光光强具有较大的起伏和秒量级的准周期振荡,并对其产生机理进行了分析。
5)  frequency fluctuation
频率波动
1.
In this paper, after considering Kerr nonlinear effect,group velocity dispersion of host,gain spectrum,gain saturation of amplifying medium and frequency fluctuation of optic pulse.
本课题在同时考虑了增益介质的非线性效应、群速度色散、增益饱和、增益谱以及光脉冲频率波动时,对啁啾宽光谱脉冲在钕玻璃放大介质中的传输特性进行研究。
2.
For the unsynchronized sampling sequence caused by frequency fluctuation of power system,the simulation is performed via MATLAB code on the conventional FFT algorithm the interpolation algorithm with Blackman window,and the interpolation algorithm with Blackman-Harris window,respectively.
针对实际电网频率波动引起的非同步采样,通过MATLAB软件对普通FFT算法、加Blackman窗和加Blackman-Harris窗的插值算法进行仿真。
3.
Simulation results show that Kaiser window function can be designed and realized neatly and restrains spectral leakage well;the influences of fundamental frequency fluctuation on harmonic analysis are restrained by using the approach presented in this paper;the relative errors of calculating fundamental frequencies with 21 order harmonics are no more than 1.
仿真结果表明:Kaiser窗函数设计实现灵活、抑制频谱泄漏效果好,Kaiser窗相位差校正算法克服了基波频率波动对谐波分析的影响,对含21次谐波信号的基波频率计算相对误差仅为1。
6)  F/V
频率/伏特
补充资料:频率计量(见时间频率计量)


频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology

  口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
  
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