CMMB单频网同步技术研究

The Research of CMMB Single Frequency Network Synchronization Technology

介绍CMMB采用的天地一体的技术体系,给出了采用单频网组网方式的CMMB地面覆盖网络的系统结构,分析了单频网组网的基本原则,详细研究了在CMMB单频网中保持时间同步和比特同步所采用的技术方案。

This paper introduces the technology infrastructure adopted by CMMB and mainly articulates the CMMB terrestrial single frequency network system diagram and then analyses its basic principles to set up a CMMB SFN. In particular, the paper thoroughly studies the technology scheme to keep time synchronization and signals synchronization in CMMB SFN.