摘要
D/A转换器在数模转换过程中会产生较严重的频谱失真,在实际上很难实现模拟信号的理想重建。本文将D/A转换器等效为一零阶保持电路,提出在一零阶保持电路后面加入一种基于FIR滤波器的离散预校正系统,能较好地解决频谱失真问题。
The D/A converter produces a serious distortion of the spectrum in process of digital analog conversion,in fact,it is difficult to achieve the ideal reconstruction of analog signals.In this paper,the D/A converter is equal to a zero-order hold circuit and a discrete pre-correction system based on FIR filter is proposed to add to the zero-order hold circuit to solve the problem of spectrum distortion.
出处
《电子世界》
2016年第11期64-65,共2页
Electronics World
