宽带取样示波器时基误差补偿的新方法研究

doi:10.3969/j.issn.1000-1158.2020.01.16

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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.

Key words： metrology time base error broadband sampling oscilloscope orthogonal distance regression synchronous measurement

Received: 18 February 2019 Published: 19 December 2019

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TB973

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	Articles by authors
	ZHU Jiang-miao
	WANG Shi-biao
	ZHAO Ke-jia
	QIAO Meng-yuan

Cite this article:

ZHU Jiang-miao,WANG Shi-biao,ZHAO Ke-jia, et al. Research on New Method of Time Base Error Compensation for Broadband Sampling Oscilloscope[J]. Acta Metrologica Sinica, 2020, 41(1): 85-89.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2020.01.16 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2020/V41/I1/85

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