数字梳状滤波器对Y/C信号进行分离的机理  

The Mechanisim on Digital Comb Filter of the Separation of Luminance Signal and Color Signal

作　　者：吕秋芬[1] 李澜 

机构地区：[1]河北师范大学物理学院,河北石家庄050016 [2]石家庄财会学校,河北石家庄050011

出　　处：《河北师范大学学报（自然科学版）》2005年第4期364-368,共5页Journal of Hebei Normal University：Natural Science

摘　　要：从数学角度论证了数字化梳状滤波器Y/C分离的可行性,推导出其基本的电路模型及幅频特性,并列举了当前数字化彩电中具有代表性的自适应多制式单片动态数字化梳状滤波器芯片实例.It is demonstrated in detail that feasibility of the digital comb filter of the separation of luminance signal and color signal from the view of mathematics,and its basic model of circuit and the characteristic of range of frequency is drived out,and muti-system one chip self-adaptation dynamic digital comb filter which is the representative of present digital color TV is enumerated.

关 键 词：亮色分离 数字式动态梳状滤波器 延时线 传输函数 低通滤波器 幅频特性 

分 类 号：TN941[电子电信—信号与信息处理]