摘要
本文通过对延时解调器的幅频特性分析，证明当色度信号经过延时解调器对两色度分量Ｆｖ与Ｆｕ进行分离时，无论延迟时间τｄ如何精确，Ｆｖ与Ｆｕ之间的串扰一定存在。定量分析结果表明，串扰信号与分离信号的最大比值接近１／４。
In this paper,it is proved that when the color signal is input in the delay period modem the disturbnance among the Fv component and Fu component must exist however the delay period τd is selected accuratly by analy zing the frequency charac tenstics of delay period modem. It is conclulded that the maximum ratio of the disturbnance signal and seprated signal is aproximatly 1/4 by the method of quantity analysis.
出处
《延安大学学报（自然科学版）》
1996年第1期33-37,共5页
Journal of Yan'an University：Natural Science Edition
基金
陕西省教委科研基金
关键词
色度信号
延时解调器
串扰
Color signal
Delay period modterisem
Disturbnance signal.
