县级电视台有线数字电视系统设计与展望

县级电视台作为广电系统的重要组成部分,其有线数字电视的推广对整体的数字电视建设具有重要意义。但是由于技术力量和经济实力的差别,县级电视台的有线数字电视建设不可能照搬大型电视台的模式,必须从各自的具体条件出发,找出合适的建设方案。介绍有线数字电视技术推广普及的背景,阐述有线数字电视的技术原理,以县级电视台的实际情况为基础,说明县级电视台建设有线数字电视的必要性。

Design and Outlook of County-level Television Station Cable Digital TV

The county-level TV Station is an important part of Broadcast Television system.The popularization and development of the county-level wired DTV mean a lot to the integrated construction of DTV.Because of the differences on technology and economic strength,county-level TV Station has to look for its own way.This paper introduces the background of wired DTV development,expounds the technical principle.And taking the practice experience,it gives the necessity of building wired DTV in county-level TV Station.