Deconvolution method for removing the distortion from time jitter in equivalent-time waveform samplers

Sun, S.-H. and Zheng, F.-C. (1989) Deconvolution method for removing the distortion from time jitter in equivalent-time waveform samplers. Acta Metrologica Sinica, 10 (2). pp. 91-96. ISSN 1000-1158

Abstract/Summary

A sampling oscilloscope is one of the main units in automatic pulse measurement system (APMS). The time jitter in waveform samplers is an important error source that affect the precision of data acquisition. In this paper, this kind of error is greatly reduced by using the deconvolution method. First, the probability density function (PDF) of time jitter distribution is determined by the statistical approach, then, this PDF is used as convolution kern to deconvolve with the acquired waveform data with additional averaging, and the result is the waveform data in which the effect of time jitter has been removed, and the measurement precision of APMS is greatly improved. In addition, some computer simulations are given which prove the success of the method given in this paper.