基于单频网的地面数字电视广播系统的建网方案设计

Design of Network Construction Scheme of Terrestrial Digital Television Broadcasting System Based on Single Frequency Network

随着科技的发展,地面数字电视广播已经逐渐取代了模拟电视,成为电视广播的主流形式。为实现地面数字电视信号的有效覆盖,选择合适的传输网络尤为重要。文章研究了基于单频网技术来建设地面数字电视广播系统的可行性。文章首先介绍了单频网的基本原理与技术特点,分析了其与传统有线电视网相比的优势;然后概述了地面数字电视广播系统的组成和技术指标;在此基础上,详细探讨了基于单频网来建设地面数字电视广播系统的网络架构、参数设计、设备选择及布置和工程实施要点。研究表明,相比传统同轴电缆网,采用单频网技术可以简化网络结构,降低建设难度,提高运维效率,并能满足地面数字电视信号传输的需求。最后,总结了研究工作并对下一步的发展方向进行了展望。文章为基于单频网建设地面数字电视广播提供了较为完整的解决方案,具有一定的参考价值和实用意义。

With the development of science and technology,terrestrial digital TV broadcasting has gradually replaced analog TV and become the mainstream form of TV broadcasting.In order to realize the effective coverage of terrestrial digital TV signal,it is very important to choose the appropriate transmission network.This paper studies the feasibility of constructing terrestrial digital television broadcasting system based on single frequency network technology.This paper first introduces the basic principle and technical characteristics of single frequency network,and analyzes its advantages compared with traditional cable television network.Then the composition and technical index of terrestrial digital television broadcasting system are summarized.On the basis of this,the network architecture,parameter design,equipment selection and layout and key points of project implementation of the terrestrial digital television broadcasting system based on single frequency network are discussed.The research shows that compared with the traditional coaxial cable network,the single frequency network technology can simplify the network struc-ture,reduce the difficulty of construction,improve the efficiency of operation and maintenance,and meet the needs of terrestrial digital TV signal transmission.Finally,the research work is summarized and the next development direction is prospected.This paper provides a more com-plete solution for the construction of terrestrial digital television broadcasting based on single frequency network,which has certain reference value and practical significance.