Abstract：Time-based errors seriously affect the accurate measurement of broadband sampling oscilloscopes, but it is extremely difficult to accurately estimate and compensate for time-base errors. For the time-base error of broadband sampling oscilloscope (including time-base distortion and jitter-induced error), the orthogonal time-regression algorithm is used to estimate the time-base error of oscilloscope for the first time. Compared with the multi-phase and multi-frequency least squares method,only to uses a set of approximately orthogonal sinusoidal signals to effectively estimate the time base error of the broadband sampling oscilloscope, and realizes the time base compensation of the measured signals. A time base error of less than 0.3ps is obtained, which significantly improves the measurement accuracy of the broadband sampling oscilloscope.
朱江淼,王世镖,赵科佳,乔孟元. 宽带取样示波器时基误差补偿的新方法研究[J]. 计量学报, 2020, 41(1): 85-89.
ZHU Jiang-miao,WANG Shi-biao,ZHAO Ke-jia,QIAO Meng-yuan. Research on New Method of Time Base Error Compensation for Broadband Sampling Oscilloscope. Acta Metrologica Sinica, 2020, 41(1): 85-89.
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2020, Vol. 41 
