基于数字发射覆盖技术的广播电视系统通信方法研究

Research on the Communication Method of Broadcasting and Television System Based on Digital Transmission Coverage Technology

当前广播电视系统覆盖识别结构多为独立形式,执行覆盖范围受限制,导致覆盖占比下降,为此提出基于数字发射覆盖技术的广播电视系统通信方法研究。根据当前测试需求及标准的变化,先提取基础数字发射覆盖交换信号特征,采用多层级的方式,打破执行覆盖范围的限制,设置多层级覆盖识别结构。以此为基础,构建数字发射覆盖技术的通信模型,采用多载波整合提高广播电视系统通信范围。最终测试结果表明:对比于传统波分技术在广播电视系统中的应用测试组、传统IP数字微波技术在广播电视系统中的应用测试组,此次所设计的基于数字发射覆盖技术的广播电视系统通信方法测试组最终得出的覆盖占比均可以达到3.2以上,说明当前所设计的广播电视数字发射覆盖结构更加灵活、多变,能够有效提高广播电视系统通信的稳定性与可靠性,扩大广播电视系统通信范围,具有实际的应用价值。

At present,the coverage identification structure of radio and television system is most-ly independent,and the implementation coverage range is limited,leading to a decrcase in the proportion of coverage.Therefore,the communication method of radio and television system based on digital transmission coverage technology is proposed.According to the changes of cur-rent test requirements and standards,the basic digital transmission coverage exchange signal fea-tures are extracted,and the multi-level method is adopted to break the limit of execution cover-age and set the multi-level coverage identification structure.Based on this,the communication model of digital transmission coverage technology is built,and the communication range of broadcasting TV system is improved by multi-carrier integration.Final test results show that:compared with the application of traditional wave separation technology in broadcasting and tel-cvision system test group,the traditional IP digital microwave tcchnology in the broadcast and television system test group,the design of the digital transmission coverage technology can reach more than 3.2,shows the current design of radio and television digital transmission coverage structure more flexible and changeable,can effectively improve the stability and reliability of broadcasting and television system communication,expand the scope of broadcasting and televi-sion system communication,has the practical application value.