An analysis of the effects of jitter in data acquisition on synchronous averaging

Sun, Mingui; Bonaddio, D.L.; Mi, Jianwei; Sclabassi, R.J.

doi:10.1109/21.87094

Cited by 7 publications

(1 citation statement)

References 2 publications

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“…Its effect in the amplitude and phase estimates of sampled signals [1], [2] and on the recovery of a signal from noise by averaging [3] has been studied by different authors. In a previous paper, we investigated the effect of time-jitter in digital wattmeters based on equally spaced sampling techniques on the hypothesis of a time-jitter common to the voltage and current channels and uncorrelated with the input signals [4].…”

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confidence: 99%

The effect of time-jitter in equispaced sampling wattmeters

Mirri

Iuculano

Pasini

et al. 1998

IEEE Trans. Instrum. Meas.

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Abstract-This paper evaluates the effect of time-jitters in the equally spaced sampling wattmeters on the hypothesis of jitters uncorrelated with the input signals. The general case of two distinct time-jitters is considered, one common to the two channels and the other different for each one of them. The performance of the wattmeter has been evaluated by considering the asymptotic statistic parameters of the output. It has been shown that the different time-jitters introduce a bias and that both time-jitters contribute to the variance of the output. In any case, time-jitters introduce further bandwidth limitations which must be taken into account in the wattmeter accuracy evaluation. The theoretical results have been compared with simulated and experimental findings. Experimental results were obtained with a prototype in which both common and different time-jitters were separately added to the equally spaced sampling instants of the two input channels. In both cases, all the results were in good agreement with theoretical expectations.

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mentioning

confidence: 99%

The effect of time-jitter in equispaced sampling wattmeters

Mirri

Iuculano

Pasini

et al. 1998

IEEE Trans. Instrum. Meas.

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Waveform measurement using synchronous digital averaging: Design principles of accurate instruments

Kalashnikov

2009

Measurement

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Performance function for time-jittered equispaced sampling wattmeters

Mirri

Iuculano²,

Menchetti³

et al. 1995

IEEE Trans. Instrum. Meas.

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Abstract-This paper evaluates the effect of time-jitter in the equally spaced sampling wattmeters on the hypothesis of equal effects in the two channels and a jitter uncorrelated with the input signals. It is shown that time-jitter, which is a random fluctuation with respect to the nominal sampling time, introduces a frequency limitation which is evaluated together with that due to the sampling strategy and ftering algoritbm. The theoretical results are compared with the simulated ones.

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An analysis of the effects of jitter in data acquisition on synchronous averaging

Cited by 7 publications

References 2 publications

The effect of time-jitter in equispaced sampling wattmeters

The effect of time-jitter in equispaced sampling wattmeters

Waveform measurement using synchronous digital averaging: Design principles of accurate instruments

Performance function for time-jittered equispaced sampling wattmeters

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