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随着我国数字电视的地面传输应用,DTMB成为第四个地面数字电视的国际标准,必将对我国的数字电视产业发展和国际化推进,产生巨大而深远的影响。在无线发射台站建设过程中,网络规划是一项非常重要的工作。本文对地面数字电视覆盖网络规划相关的基本知识做了简要的概述,并重点介绍了国标推荐的几种工作模式、覆盖网络规划计算常用公式,并结合单频网项目论述法国ATDI公司的ICS Telecom NG覆盖规划分析软件的计算过程及结果显示,验证了使用仿真软件进行网络规划的可行性,并针对此项目提出了网络优化的建议。
With the terrestrial transmission application of digital television in our country, DTMB has become the fourth international standard of terrestrial digital television, which will surely have a huge and far-reaching impact on the development and internationalization of the digital television industry in our country. Network planning is a very important task in the construction of wireless transmitting stations. This article gives a brief overview of the basic knowledge of terrestrial digital television coverage network planning, and focuses on several working modes recommended by national standard, covering commonly used formulas for network planning and calculation. Combined with the single frequency network project, it discusses ICS Telecom The calculation process and results of NG coverage planning and analysis software show that the feasibility of network planning using simulation software is verified and the network optimization proposal is proposed for this project.