jitter


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jitter

[′jid·ər]
(communications)
In facsimile, distortion in the received copy caused by momentary errors in synchronism between the scanner and recorder mechanisms; does not include slow errors in synchronism due to instability of the frequency standards used in the facsimile transmitter and recorder.
(electronics)
Small, rapid variations in a waveform due to mechanical vibrations, fluctuations in supply voltages, control-system instability, and other causes.

jitter

i. An ECCM (electronic counter-countermeasure) technique in which the radar PRF (pulse repetition frequency) is made to vary in a random manner.
ii. The instability of the signal or trace of a cathode-ray tube.
iii. Small rapid variations in a waveform caused by deliberate or accidental electrical or mechanical disturbances or to changes in the supply voltages, in the characteristic of components, etc.

jitter

Random variation in the timing of a signal, especially a clock.

jitter

A flicker or fluctuation in a transmission signal or display image. The term is used in several ways, but it always refers to some offset of time and space from the norm. For example, in a network transmission, jitter would be a bit arriving either ahead or behind a standard clock cycle. In computer graphics, to "jitter a pixel" means to place it off side of its normal placement by some random amount in order to achieve a more natural appearance. See anti-aliasing. See also jitterati.
References in periodicals archive ?
Although CN electrode has been used to assess jitter in MG patients and healthy controls, no report had used CN electrode to assess jitter in neurogenic diseases to investigate motor unit instability.
3 years (19-82 years) who were studied using a 37-mm CNE for quantitative jitter analysis in voluntary activated periocular muscles by trained electromyographers.
Filter masks and jitter calculations for PCIe technology are often misunderstood during the development process.
The BSA286CL has a fully redesigned jitter impairment system that incorporates state of the art modulation technology to 100G PHY layer testing.
Generates intrinsic jitter without any error as per G.
Jitter measured with a bit error ratio tester (BERT) is the standard against which other methods are judged.
Easy, accurate, visual pulse shape and jitter measurement for T1/E1 signals (only available with Universal T1/E1 cards and tProbe(TM) T1/E1 analyzer)
Jitter in this case must be removed to get an accurate estimate of pulse parameters and an accurate reconstruction of the input signal.
Notice the slower rise and fall times that cause the reduced eye amplitude, the higher overshoot and undershoot, and the resulting additional jitter that causes reduced eye width.
This article reviews some of the standards and design considerations, and specifically focuses on jitter, phase noise and PLL simulations and results interpretation.
As networking infrastructure equipment migrates to higher line rates, improving jitter performance is becoming a critical decision factor.