VM700T视频测量仪的校准方法的改进

摘要

For the limitations of the traditional calibration methods of VM700T video measurement set, a new calibration method is put forward. TG2000 TV test signal generator and signal editing program SDP2000 is introduced, and establishment process of calibration signal for VM700T is given. The distortion parameters of calibration signal is verified with the VM700T in laboratory, and the result is as the same as setting. The calibration of VM700T' s measurement accuracy of the distortion parameters is achieved,and the technical level of the calibration work is improved.%针对传统VM700T视频测量仪的校准方法的局限性,提出了新的校准方法.介绍了TG2000电视测试信号发生器和信号编辑程序SDP2000,给出了VM700T校准信号的编制过程.使用实验室的VM700T对校准信号的各项失真参数进行了验证,与编制时的设定值基本一致.实现了VM700T对具体失真参数的测量准确度的校准,提高了校准工作的技术水平.