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无线数字电视是基于有线数字电视而产生的一种新型电视接收方式,两者覆盖方式有很大区别。目前,地面无线数字电视在我国的推广上处于初始阶段,覆盖范围有待扩大,并且存在接收不良等各类问题,这也导致无线数字电视的推广受到限制。基于此,本文在简要分析单频网原理及优点的基础上,阐述了地面无线数字电视覆盖单频网SFN的组网模式,最后探讨了地面无线数字电视覆盖单频网SFN接收不良的有效处理措施。
Wireless digital television is a new type of television receiving method based on the cable digital TV. The way of covering the two is quite different. At present, terrestrial wireless digital television is in its initial stage of promotion in our country, its coverage needs to be expanded, and there are various problems such as poor reception, which also leads to the restriction of the promotion of wireless digital television. Based on this, based on the brief analysis of the principles and advantages of single frequency network, this paper expounds the networking mode of SFN covered by terrestrial wireless digital television. Finally, the effective treatment of poor reception of SFN over terrestrial digital television coverage Measures.