摘要
介绍了一种滤波器——梳状滤波器,他是一种特殊的滤波器,随着研究的不断深入,梳状滤波器已经被广泛地应用到复合电视信号中亮度信号和色度信号的分离。分析了梳状滤波器分离PAL制亮度和色度信号的原理,简单介绍了亮度信号与色度信号分离需要的条件,通过数学方程推导比较详细地介绍了梳状滤波器的幅频特性,最后得出结论说明这种梳状滤波器可以很好地实现亮色分离。
In this paper,a fiter of comb fiter is introduced. It is a special liter. With more study,the comb filter has been ap- plied extensively to separate Y/C in compound television signal. The paper analyzes the principle of Y/C separation on PAL system. Simply introduces the demand to separate Y/C. Through math formula,introduces the magnitude characteristic of the comb fiter. In the end came to the conclusion that the comb fiter can successfully separate Y/C.
出处
《现代电子技术》
2008年第5期171-172,178,共3页
Modern Electronics Technique
关键词
梳状滤波器
亮色分离
幅频特性
复合电视信号
comb liter
Y/C separation
magnitude characterristic
compound television signal
