Jitter

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.

Jitter can be quantified in the same terms as all time-varying signals, e.g., root mean square (RMS), or peak-to-peak displacement. Also like other time-varying signals, jitter can be expressed in terms of spectral density (frequency content).

Jitter period is the interval between two times of maximum effect (or minimum effect) of a signal characteristic that varies regularly with time. Jitter frequency, the more commonly quoted figure, is its inverse. ITU-T G.810 classifies jitter frequencies below 10 Hz as wander and frequencies at or above 10 Hz as jitter.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Jitter

Latest News for: jitter

New teachers face first day jitters

The Lexington Dispatch 25 Aug 2018

For many students the first day of school can be a daunting experience, especially when starting at a new school. But people may not consider that there are others in school who are just a nervous as the students, the new teachers.Christina Santiago, 24, is a first-year teacher at Southwest Elementary School in Lexington ... ....

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Students shake off jitters and start unpacking at Gonzaga move-in day

The Spokesman-Review 25 Aug 2018

Move-in day at college is supposed to be a little stressful. There’s the packing and hauling, the long drive, the new environment, and at the end of it all, the hard goodbyes. Not the case for Ameena Dawes. The 18-year-old from Houston, Texas didn’t arrive to Gonzaga University laden down with luggage like like many of her peers. No van. No boxes. No bags ... “My parents said to get some wind under your wings,” the freshman said....

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EU wheat prices slip to 4-week low as supply jitters fade

Irish Independent 25 Aug 2018

Gus Trompiz. August 25 2018 4.00 PM. 0 Comments EU wheat prices slip to 4-week low as supply jitters fade. FarmIreland.ie. Euronext wheat fell to its lowest in almost four weeks on Friday as weakness in Chicago and a jump in the euro took attention away from global supply tensions seen as priced in. https.//www.independent.ie/business/farming/tillage/grain-prices/eu-wheat-prices-slip-to-4week-low-as-supply-jitters-fade-37251207.html ... ....

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Rand firmer as Trump tweet jitters ease

Independent online (SA) 24 Aug 2018

South Africa’s rand was firmer on Friday, regaining poise after a sharp dip in the previous session following U.S. President Donald Trump’s tweet ... ....

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MARKET REPORT: Builders pummelled by housing market jitters with Persimmon down 1.4%

The Daily Mail 24 Aug 2018

Industry figures gave the housebuilding sector a double-whammy knock – the number of mortgages approved for new homes dropped in July, while net mortgage lending hit a five-month low ... ....

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MARKET REPORT: Builders pummelled by housing market jitters with Persimmon down 1.4% and Taylor Wimpey slipping 1.5%

This is Money 24 Aug 2018

Housebuilders were on rocky foundations yesterday after poor mortgage data set investors’ alarm bells ringing ... Persimmon, the UK’s largest listed housebuilder, ended the day down 1.4 per cent, or 35p, at 2454p ... ....

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Exam jitters send boy, pals on school ransack spree

The Times of India 24 Aug 2018

HOWRAH. A Class X-student, who apparently needed more time to prepare for his mid-term exams, orchestrated the ransack of his school to delay the exams. The incident took place at Netaji Vidyayatan in Howrah’s Dasnagar early on Thursday. The student, who is good in studies, was accompanied by some of his friends in the vandalism ... They realised the miscreants were more interested in vandalism rather than looting ... ....

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Markets welcome Fed speech aimd emerging market jitters

The Daily Telegraph 24 Aug 2018

Investors breathed a sigh of relief after the head of the US Federal Reserve made dovish comments about the rate of inflation in the US, which will only require gradual rate hikes. There had been concern that Jerome Powell would lay out an accelerated series of rate hikes despite recent wobbles in emerging market economies. The risk of surge in inflation remained low, Mr Powell said ... Markets Hub - US Dollar ... Markets Hub - Turkish Lira ... ....

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Exam jitters send boy on school ransack spree

The Times of India 24 Aug 2018

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Matthew's sports blog: Even sports reporters get first-game jitters

Current-Argus 23 Aug 2018

I’m looking forward to making the drive up to Artesia’s Bulldog Bowl and see exactly what Friday night football looks like in this part of the state ... ....

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Jitter Glitter or Ready Confetti? Sparkles help make life easier

Times Record News 22 Aug 2018

Can this Grammy have some of that jitter glitter to help face next phase of her life? .......

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Use Strategies to Ease First-Day School Jitters

The Newberry News 22 Aug 2018

Parents and educators sometimes can underestimate children’s anxiety over the dawn of a new school year. Many students feel nervous when wondering if their teachers will be nice or if they’ll make new friends. These worries may be compounded by the return to routine and the end of an enjoyable period of rest and relaxation ... ....

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More than just first-day jitters as Santa Fe students return three months after shooting

Houston Chronicle 21 Aug 2018

For weeks, Bailee Sobnosky’s heart would race when she would think about the first day of school. The 16-year-old had occasional panic attacks ever since the morning of May 18, when gunshots erupted 200 feet away from where she was dropping off her soccer uniform at the Santa Fe High School girls locker room ... ....

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