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单词 Dejitterizer
释义

Dejitterizer

中文百科

抖动 Jitter

(重定向自Dejitterizer)

在电子和电信产业中,抖动又可称为时基误差英语:Jitter),通常是周期信号与参考时钟之间的差异,时基误差会影响数字模拟转换器的模拟输出。考虑Jitter是非常重要的,在通信链接中,如(如,USB,PCI-e,SATA,OC-48)是不希望发生Jitter的,尤其是采样信号的还原过程。

像所有的随时间变化的信号一样Jitter可以被量化,比如均方根,峰-峰值位移;也可以用频谱分布进行量化。

Jitter周期是指一个信号的两次峰值之间的时间发生变化的周期。Jitter频率是Jitter的倒数。通常,如果Jitter频率,对系统影响不大,在低级系统设计中可以不用加以考虑。

英语百科

Jitter 抖动

(重定向自Dejitterizer)
In the normal distribution one standard deviation from the mean (dark blue) accounts for about 68% of the set, while two standard deviations from the mean (medium and dark blue) account for about 95% and three standard deviations (light, medium, and dark blue) account for about 99.7%.
Tamaño medido del jitter.
Dichtefunktion von deterministischen Jitter (DJ) und zufälligen Jitter (RJ) als Funktion des Unit Interval (UI)

Jitter is the deviation from true periodicity of a presumed periodic signal in electronics and telecommunications, often in relation to a reference clock source. Jitter may be observed in characteristics such as the frequency of successive pulses, the signal amplitude, or phase of periodic signals. Jitter is a significant, and usually undesired, factor in the design of almost all communications links (e.g., USB, PCI-e, SATA, OC-48). In clock recovery applications it is called timing jitter.

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更新时间:2025/6/17 7:05:59