18 May '13, 5pm

Timing noise - the strange case of flicker

Timing noise - the strange case of flicker

Noise in the time dimension: the strange case of flicker Ransom Stephens - January 17, 2013 Tweet Save & Follow Save to My Library Follow Comments Follow Author PRINT EMAIL The concept of noise brings to mind static, a bad cell-phone connection, a poorly tuned radio or television, pixel-freakout on TV. Clocks have noise, too. The time between ticks on your watch is not exactly one second. The time between this tick and [wait a second] this tick is not exactly the same. Other than things that you count, like the number of people in a room, every measurement suffers uncertainty and imprecision. Figure 1: Flicker is everywhere. Timing noise in digital electronics is called jitter and it’s a big problem for design engineers. It causes errors—pixel freakout on TV, audio crackup on cell phones, and errors on networks can even screw up your bank balance. Optimizing cost and perfo...

Full article: http://www.tmworld.com/electronics-blogs/measure-of-thing...

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