摘要
在正交调制的实现过程中有四路输入信号,每路输入信号都不可避免的引入误差。本文主要讨论引入的线性误差对已调信号的影响,并提出了改善方法。
There are four types of input signals when realizing the quadration modulation,each of these input signals inevitably involve error In this paper,each of these error term is individually examined for its effect on the output modulationed signal,and a modified method is proposed
出处
《现代电子技术》
2004年第20期78-80,86,共4页
Modern Electronics Technique
关键词
正交调制
星座图
一阶线性误差
误差矢量
quaudration modulation
signal space diagram
the linear error
error vector
