摘要
分析了全数字高清晰度电视（HDTV）中地面广播信道的干扰及抑制措施，给出了抑制同频干扰的梳状滤波器的设计方法和HDTV中8-VSB基本原理及传输方案，并基于传信率1／T＝23．548Mbps的8—VSB作了计算机模拟。
In this paper, we analyze the interference in the terrestrial over-the-air broadcasting channel of all-digital high-definition television (HDTV) and the method for reducing the interferences. The design method of the comb filter to remove the cochannel interference and the 8-VSB transmission principle and scheme of HDTV is given. On the basis of rate 1/T= 23. 548Mbps, the result of computer simulation is prensented.
出处
《通信技术》
1996年第1期16-20,共5页
Communications Technology
基金
国家自然科学基金
"八五"重点攻关项目
