| 有线数字电视射频信号调制识别研究 |
| |
| 引用本文： | 佘方毅,刘海涛,杨方正.有线数字电视射频信号调制识别研究[J].中国有线电视,2007(12):1143-1145. |
| |
| 作者姓名： | 佘方毅 刘海涛 杨方正 |
| |
| 作者单位： | 国家广播电影电视总局广播科学研究院,北京,100866 |
| |
| 摘 要： | 从有线数字电视射频信号特征参数提取着手,建立了一套识别16QAM和64QAM射频信号调制方式的数学算法。试验仿真和实际信号验证表明,该算法计算量小,识别率高,易于实现。本项研究为广播电视安全播出和数字电视终端整合提供有益的技术实践。
|
| 关 键 词： | 射频信号 调制识别 有线数字电视 |
| 文章编号： | 1007-7022（2007）12-1143-03 |
| 收稿时间： | 2007-05-23 |
| 修稿时间： | 2007-05-23 |
Modulation Recognition on RF Signal in Digital Cable TV System |
| |
| SHE Fang-yi,LIU Hai-tao,YANG Fang-zheng.Modulation Recognition on RF Signal in Digital Cable TV System[J].China Cable Television,2007(12):1143-1145. |
| |
| Authors: | SHE Fang-yi LIU Hai-tao YANG Fang-zheng |
| |
| Institution: | Academy of Broadcasting Science, Beijing 100866, China |
| |
| Abstract: | Based on the characteristic extracting of RF signal in digital cable TV system, this paper puts forward an algorithm for modulation recognition between 16QAM and 64QAM RF signals. Results of Computer simulations and real QAM signal testing show that the modulation recognition algorithm is reliable and feasible. This paper brings a useful technical practice to the safety of broadcast television broadcasting and the integration of digital TV terminals. |
| |
| Keywords: | QAM |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
