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本文介绍实现仪表传输函数最佳修正的数字方法。在分析了脉冲波形通过仪表发生畸变的原因后,根据最小均方误差准则导出了最佳数字校正器的设计方法。由于这种校正器的插入,仪表输出脉冲波形的过渡过程得到缩短,仪表导致的畸变也得到一定的修正,从而使仪表或设备的分辨力获得较大的提高。除计算机模拟之外,本文还给出一个实验。计算机模拟和实验都很好地符合了理论上的结论。
This article describes the digital method for implementing the best correction of the meter transfer function. After analyzing the reason that the pulse waveform distorts through the instrument, the design method of the optimum digital corrector is derived according to the minimum mean square error criterion. Due to the insertion of such a corrector, the transition of the pulse waveform of the instrument output is shortened, and the distortion caused by the instrument is also corrected, so that the resolution of the instrument or device is greatly improved. In addition to computer simulations, this article gives an experiment. Computer simulations and experiments are in good agreement with the theoretical conclusions.