现代电子技术Issue(15)：39-41,3.
PAL制彩色全电视信号数字解码研究与实现
Research and implementation for digital decoding of PAL format color TV signal
摘要
Abstract
Since the expensive charging standard and tedious setting up of digital TV,digital method is proposed for solving the phenomenon of luminance color crosstalk and chrominance distortion after analog video decoding. High⁃speed FPGA hard⁃ware acquisition system is applied to converting analog video into digital video and storing. Luminance and chrominance signals are separated by adaptive 2D comb filter. To guarantee the demodulated red and blue chromatic aberration signals against distortion, Costas loop is applied to synchronizing with chrominance subcarrier. This method improved image quality,solved the problems of blurring analog TV luminance and unsaturated chrominance. When users are watching analog TV,the telepresence is enhanced.关键词
自适应梳状滤波/亮色分离/色度解调/Costas环Key words
adaptive comb filtering/luminance/chrominance(Y/C)separation/chrominance demodulation/Costas loop分类
信息技术与安全科学引用本文复制引用
牟亚南,陈金鹰,杨敏,魏万迎..PAL制彩色全电视信号数字解码研究与实现[J].现代电子技术,2015,(15):39-41,3.基金项目
科技支撑计划资金资助项目 （）
