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,...

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...

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...

A simplified overview of time-domain jitter measurements is presented in this paper. The relationship between the timedomain jitter measurements and the power spectrum of the phase jitter is described using fundamental Fourier properties and basic random variables analysis. This leads to a unifying analysis and the results are in agreement with commonly accepted understanding of jitter accumula...

Data traversing packet networks experience varying delays, resulting in inter-arrival jitter. This can result in degraded performance in real-time multimedia communications applications if the jitter delays are large or unaccounted for in the receiver application. This paper examines modeling and simulation of network jitter delay for real-time multimedia communications applications. We examine...

A novel passive phase correction method for stable fiber transfer of radio-frequency (RF) signal is proposed and demonstrated. By employing only one local oscillator and two frequency mixers in the local station, an RF signal received by an optical remote antenna unit is transmitted to the local station with very small phase jitter. An experiment is performed. When a 6 GHz RF signal is delivere...

This paper analyses the effect of the clock jitter error in multi-bit continuous-time Σ∆ modulators with non-return-to-zero feedback waveform. Derived expressions show that the jitter-induced noise power can be separated into two main components: one that depends on the modulator loop filter transfer function and the other one due to the input signal parameters, i.e amplitude and frequency. The...