吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (4): 1159-1164.doi: 10.13229/j.cnki.jdxbgxb201704021

• Orginal Article • Previous Articles     Next Articles

Standard generator and its calibration method for analog component video signal with distortion

CHEN He1, YANG Zhi-jun2, WU Zhao-chun2, Feng Zhi-gang2, ZHAO Ke-jia2, LI Di-fei2, TIAN Di1   

  1. 1.College of Instrumentation & Electrical Engineering, Jilin University, Changchun 130061, China;
    2.Division of Electronics and Information Technology, National Institute of Metrology, China, Beijing 100029, China
  • Received:2016-06-23 Online:2017-07-20 Published:2017-07-20

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Abstract: When standard analog component video test signal is employed to calibrate video signal analysis instrument, the measurement results are insufficient. To solve this problem, first, the measurement principle of analog component video signal was analyzed. Then, based on the SDP2000 signal editing software and TG700 video signal generator, analog component video test signal with distortion was developed. A standard video signal source was set up, whose voltage level and rise time were calibrated and the measurement uncertainty was analyzed. Results show that the expended uncertainty of voltage level is 0.60% and the expended uncertainty of rise time is 0.19% (coverage factor k=2). Such standard source is able to generate standard definition and high definition analog component video test signal with distortion, which can be used to calibrate video signal analysis instrument to obtain various results and evaluate the measurement accuracy of the instrument more comprehensively.

Key words: instrument and meter technology, distortion analog component video test signals, digital signal synthesis, instrument calibration, uncertainty of measurement

CLC Number: 

  • TN98
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