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In optics, jitter is used to refer to motion that has high temporal frequency relative to the integration/exposure time. This may result from vibration in an assembly or from the unstable hand of a photographer. Jitter is typically differentiated from smear, which has a lower frequency relative to the integration time. [1]
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 deviation lower frequencies below 10 Hz as wander and higher frequencies at or above 10 Hz as jitter. [2]
Phase noise measured by signal source analyzer (SSA). The SSA shows the positive part of the phase noise. In this picture there is a phase noise of the main carrier, 3 other signals and "noise hill".
For instance, assume an amplifier has a noise temperature 870 K and thus a noise figure of 6 dB. If that amplifier is used to amplify a source having a noise temperature of about room temperature (290 K), as many sources do, then the insertion of that amplifier would reduce the SNR of a signal by 6 dB.
In high-quality circuits, the range of T' is relatively small compared to the average period T. This variation in oscillator period is called jitter. [3] Local temperature effects cause the period of a ring oscillator to wander above and below the long-term average period. [4]
A very high level of jitter has been detected in the star's spectrum. There is a possibility that the jitter could be induced by the dimmer secondary companion. HAT-P-32's dimmer constituent probably has a mass that is under half of the Sun's mass, [1] while it has a temperature of 3565 ± 82 K. [6]
Most houseplants prefer a temperature around 60 degrees or a bit higher to grow and stay healthy. And if you live in regions where the temperature is freezing, you also need to think about your ...
Principal sources of Gaussian noise in digital images arise during acquisition e.g. sensor noise caused by poor illumination and/or high temperature, and/or transmission e.g. electronic circuit noise. [3]