Performance Index: We evaluate phase noise of VCO as a performance index of frequency domain, and cycleto-cycle jitter and cycle-jitter, as performance indices of time domain. The cycle-jitter is estimated from the histogram of period (Ti) in oscillation waveform, and, the cycle-to-cycle jitter is estimated by histograming the difference in periods from one cycle to the next (Ti-Ti-1). The cycl...

Jitter is extremely important in PLL based systems. The effects of jitter range from not having any effect on system operation to rendering the system completely non-functional. Reducing Jitter and power supply is one way to help to improve the system performance. This review will concentrate on jitter and power supply in PLL building blocks. KeywordsLOW POWER, LOW JITTER, PFD, PLL ____________...

Timing signal jitter can have a profound impact on a wide variety of applications from analog radio frequency (RF) or audio-to-digital communications. While information in a communications system, for example, is extracted from serial data streams by sampling the data signal at specific points, the presence of small quantities of jitter can alter the edge positions enough to lead to data errors...

In real-time control system, output jitter of a task is important when feedback control loops are implemented as execution of periodic tasks. Output jitter refers to the variation of response time of a periodic task. For the stability of the control system, output jitter should be reduced. This paper aims to reduce the output jitter of real-time tasks under EDF scheduling. The proposed scheme d...

Clock (CLK) generators and synthesizers form the pulse of a complex digital system and errors in a clock's signal quality can have wide-ranging effect. One of the most important performance measurements is clock jitter. Jitter is defined as "the short-term variation of a signal with respect to its ideal position in time." In a clock generator chip, there are many factors which contribute to out...

This paper proposes a new equation to show the time domain features of jitter: Jitter = (Ti+1-Ti)/Ti. The subjects are tonal language speakers. Jitter is extracted from EGG signals. The results show that: (1) jitter does not obey Gaussian distribution but multimodal distribution; (2) the first peak position near zero of the jitter distribution curve increases with the pitch; (3) each peak posit...

The characteristic function of soliton phase jitter is found analytically when the soliton is perturbed by amplifier noise. In additional to that from amplitude jitter, the nonlinear phase noise due to frequency and timing jitter is also analyzed. Because the nonlinear phase noise is not Gaussian distributed, the overall phase jitter is also non-Gaussian. For a fixed mean nonlinear phase shift,...

Jitter is considered as one of the most crucial factors to the aim of synthesizing natural motional speech. Unlike the traditional methods of measuring jitter in emotional speech, this paper propose that the jitter in the speech could be decomposed into two parts, that to say, deterministic jitter and random jitter. Deterministic jitter is associated with certain causes that may be the affect c...

Traditionally, Operating system jitter has been a source of performance degradation for parallel applications running on large number of processors. While some large scale HPC systems such as Blue Gene/L and Cray XT4, mitigate jitter by making use of a specialized light-weight operating system on compute nodes, other clusters have attempted using HPC-ready commodity operating systems such as Ze...