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http://dx.doi.org/10.26866/jees.2018.18.3.169

Calibration and Uncertainty Analysis of Sample-Time Error on High Jitter of Samplers  

Cho, Chihyun (Center for Electromagnetic Metrology, Korea Research Institute of Standard and Science)
Lee, Joo-Gwang (Center for Electromagnetic Metrology, Korea Research Institute of Standard and Science)
Kang, Tae-Weon (Center for Electromagnetic Metrology, Korea Research Institute of Standard and Science)
Kang, No-Weon (Center for Electromagnetic Metrology, Korea Research Institute of Standard and Science)
Publication Information
Journal of electromagnetic engineering and science / v.18, no.3, 2018 , pp. 169-174 More about this Journal
Abstract
In this paper, we propose an estimation method using multiple in-phase and quadrature (IQ) signals of different frequencies to evaluate the sample-time errors in the sampling oscilloscope. The estimator is implemented by ODRPACK, and a novel iteration scheme is applied to achieve fast convergence without any prior information. Monte-Carlo simulation is conducted to confirm the proposed method. It clearly shows that the multiple IQ approach achieves more accurate results compared to the conventional method. Finally, the criteria for the frequency selection and the signal capture time are investigated.
Keywords
Jitter; Sampling Oscilloscope; Time Base Distortion (TBD); Uncertainty; Waveform;
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