单交叉口的信号控制的基本参数有两个：周期时长和绿信比。
The signal control of the isolated intersection has two basic parameters: the cycle length and the green split.
重复控制的基本思想是控制理论中的内模原理，根据上一周期的控制误差消除后面各周期性的信号误差。
The repetitive controller based on the theory of internal model produces correction signal based on the control error of the last cycle to eliminate the error in the latter cycle.
通过时域波形和频谱等基本分析手段来探测振动加速度信号中的周期性冲击分量往往是困难的。
It is difficult to detect the periodic impulse component in the vibration acceleration signal with conventional analysis methods such as time domain wave and frequency spectrum.
提出了一种以测量周期性信号有效值为基本功能的数字式多用表的设计方案。
This paper presents a design scheme of a digital multi meter for measuring periodical signals.
首先，在随机共振的原理基础上，给出了利用随机共振原理检测微弱周期信号的基本方法，并对方法进行了分析与验证。
Firstly the basic principle of stochastic resonance is introduced, an approach for detecting weak periodic signal using stochastic resonance theory is presented.
首先，在随机共振的原理基础上，给出了利用随机共振原理检测微弱周期信号的基本方法，并对方法进行了分析与验证。
Firstly the basic principle of stochastic resonance is introduced, an approach for detecting weak periodic signal using stochastic resonance theory is presented.
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