In this paper,at first we analyze the effect of the offset error in paper ［1］ on the input signal s spectra,then explain the principle of increasing the amplitude resolution,and derive the additional signal spectra representation with sinusoid input.
本文首先分析了文献［1］中的偏置误差对输入信号频谱的影响，说明了提高幅度分辨率的基本原理，然后推导出了输入信号为正弦信号时附加信号的频谱表达式，提出了两种提高该系统的幅度分辨率的方法。