We use the moment method to calculate the Gordon–Haus timing jitter of optical pulses in dispersion-managed communication systems designed by use of lumped fiber amplifiers. The use of the Gaussian approximation for the chirped pulses, in combination with variational analysis, allows us to obtain an analytic expression for the timing jitter that is valid for an arbitrary number of amplifiers wi...

In this study we examined the effects of simulated horizontal and vertical viewpoint jitter on the vection and postural sway induced by radial patterns of optic flow. During each trial, observers were exposed sequentially to 20 s periods of radially expanding flow, radially contracting flow, and static visual scenes. For half the trials, simulated viewpoint jitter was added to the radially expa...

Selected service-discovery systems allow clients to issue multicast queries to locate network devices and services. Qualifying devices and services respond directly to clients; thus, in a large network, potential exists for responses to implode on a client, overrunning available resources. To limit implosion, one service-discovery system, UPnP, permits clients to include a jitter bound in multi...

This paper deals with the generation, measurement and modeling of the jitter encountered in the signals of a testhead board for automatic test equipment (ATE). A novel model is proposed for the jitter; this model takes into account the radiated electromagnetic interference (EMI) noise in the head of an ATE. The RMS value of the jitter is measured at the output signal of the testhead board to va...

We show that the timing jitter in dispersion-managed light-wave systems can be reduced considerably by replacing the erbium-doped fiber amplifiers with parametric amplifiers in which four-wave mixing is used to generate a phase-conjugated signal. We derive analytic expressions for the timing jitter by using the moment method for both the soliton and the nonsoliton systems and show that in both ...

We report on the characterization and long-term compensation of additive timing jitter introduced by a femtosecond ytterbium regenerative amplifier with a 100 kHz repetition rate. A balanced optical cross-correlation technique is used to generate a jitter error signal. This approach is well suited to characterize the additive timing jitter of Yb amplifiers seeded by narrow spectrum Yb oscillato...

ANALYSIS AND DESIGN OF LOW-JITTER OSCILLATORS Justin Jennings Fitzpatrick Department of Electrical and Computer Engineering Master of Science This thesis presents an examination of the jitter performance of different oscillator types in the presence of flicker noise, white noise and power supply noise. Key results are achieved using time domain simulations to determine cycle jitter of several d...

The description of the optimal Sampling – Reconstruction Procedure of Gaussian fields with jitter is given on basis of the conditional mean rule when the quantity of samples is limited. We analyse the case when the jitter is only presented in some samples. The jitter of each sample is independent and can have the same or different distribution law. We apply the statistical average to the condit...

The role of radial velocity (RV) jitter in extrasolar planet search surveys is discussed. Based on the maximum likelihood principle, improved statistical algorithms for RV fitting and period search are developed. These algorithms incorporate a built-in jitter determination, so that resulting estimations of planetary parameters account for this jitter automatically. This approach is applied to R...

Precise action potential timing is crucial in sensory acuity and motor control. Convergence of many synaptic inputs is thought to provide a means of decreasing spike-timing variability ("jitter"), but its effectiveness has never been tested in real neurons. We used the dynamic-clamp technique in mouse auditory brain stem slices to examine how convergence controls spike timing. We tested the rol...