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1)  discrete periodic signals
离散周期信号
1.
Aimed at the disadvantage of time reconstruction formula of discrete periodic signals, a new formula with the help of Discrete Fourier Transforms (DFT) is obtained.
针对原有离散周期信号时域重构公式的缺陷 ,找到了借助于DFT的内插重构公式 ,该公式与原有公式相比可在任意时间点重构出原信号 ,计算结果表明这种内插重构公式重构效果较
2)  periodic signal separation
周期信号分离
3)  Discrete periodic
离散周期
4)  periodic signal
周期信号
1.
Study on a new method for high-speed data acquisition of periodic signal;
一种新的周期信号的高速数据采集方法研究
2.
Waveform design and spectral analysis in direct digital synthesizing of periodic signals;
周期信号直接数字式合成中的波形设计与频谱分析
3.
Study on sampling non-synchronism for periodic signal;
周期信号取样非同步度的研究
5)  signal cycle
信号周期
1.
According to the queue length waiting in each intersection,both the signal cycle and the split of every intersection were given out.
该控制器能够根据交叉口各相位车辆的排队长度,对各个相位的绿信比和总的信号周期进行实时分配,并且根据交通状况的变化,可以对信号配时效果进行评价,对信号作出调整,具有学习功能。
2.
A method of computing the signal cycle for the coordinated signal control scheme is i.
并应用到株洲市中心广场环形交叉口的信号周期确定中。
3.
The queuing states in the green end were taken as objective,the dynamic signal timing at single-point intersection under the control of two-phase signal was studied,a queuing model was built according to the queuing and discharging process,and the effects of signal cycle,split and arrival ratio on the queuing states were analysed.
根据排队形成和消散过程建立了排队模型,分析了信号周期、绿信比和到达率对排队状态的影响。
6)  periodic signals
周期信号
1.
Reconstruction of periodic signals based on non-uniformity synchronous sampling;
基于非均匀同步采样的周期信号重构
2.
Application of genetic algorithm in Fourier transform of periodic signals;
遗传算法在周期信号傅立叶变换中的应用
3.
Detection methods research of frequency domain based on periodic signals;
基于周期信号的频域检测方法研究
补充资料:离散时间周期序列的离散傅里叶级数表示
       (1)
  式中χ((n))N为一离散时间周期序列,其周期为N点,即
  式中r为任意整数。X((k))N为频域周期序列,其周期亦为N点,即X(k)=X(k+lN),式中l为任意整数。
  
  从式(1)可导出已知X((k))N求χ((n))N的关系
   (2)
  式(1)和式(2)称为离散傅里叶级数对。
  
  当离散时间周期序列整体向左移位m时,移位后的序列为χ((n+m))N,如果χ((n))N的离散傅里叶级数(DFS)表示为,则χ((n+m))N的DFS表示为
  

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