基于FIR滤波器的离散预校正系统  

A discrete pre-correction system based on FIR filter

作　　者：王海燕[1] 殷俊[1] 潘显萌 

机构地区：[1]公安部第三研究所

出　　处：《电子世界》2016年第11期64-65,共2页Electronics World

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.

关 键 词：数模转换 频谱失真 FIR滤波器 预校正 

分 类 号：TN713[电子电信—电路与系统]