摘要
DVB-RCS2规范在调制编码技术方面较DVB-RCS作出了重要改进,分别研究了前向链路的自适应编码调制方式,以及回传链路突发所采用的两种传输模式,即Turbo码线性调制模式和卷积码连续相位调制模式。通过对其实现方式和关键参数的分析,探讨了DVB-RCS2体制的灵活性和高效性。
The modulation and coding techniques of DVB-RCS2 has improved a lot on the basis of DVB-RCS. The adaptive coding and modulation technique used in the forward link and the two kinds of transmission modes used in the return link, i.e. the Turbo coding and linear modulation mode and the convolutional coding and continuous phase modulation mode are discussed in this paper. The flexibility and efficiency of DVB-RCS2 by analyzing the implementation and the key parameters of these techniques are also discussed in this paper.
出处
《电视技术》
北大核心
2012年第17期3-6,10,共5页
Video Engineering
基金
河南省2011年基础与前沿技术研究计划项目
