全固态模拟电视发射机数字化改造难点浅析  

Analysis of Difficulties in Digital Transformation of All-Solid-State Analog TV Transmitter

作　　者：黄岳华 HUANG Yuehua(Zhuhai Radio and Television Transmitting Station,Zhuhai 519000,China)

机构地区：[1]珠海广播电视发射台,广东珠海519000

出　　处：《电视技术》2022年第4期119-121,共3页Video Engineering

摘　　要：随着广播电视播出系统全面数字化,地面数字电视广播逐步实现全覆盖,传统全固态模拟电视发射机已被淘汰。部分发射机生产厂家在设计上具有前瞻性,在激励器、监测监控系统、电源管理系统等环节预留了数字化升级的空间。因此,对使用年限较少的全固态模拟电视发射机进行数字化升级改造,在发射机的稳定性、经济效益可观性等方面具有重要意义。为此,主要针对发射机在数字化改造过程中遇到的难点,提出具体实施措施。With the full digitization of radio and television broadcasting systems,terrestrial digital television broadcasting has gradually achieved full coverage,and traditional all-solid-state analog television transmitters have been eliminated.Some transmitter manufacturers are forward-looking in design,and have reserved space for digital upgrades in exciters,monitoring systems,and power management systems.Therefore,the digital upgrade and transformation of the all-solid-state analog TV transmitter with little service time is of great significance in terms of the stability of the transmitter and the observability of economic benefits.Therefore,this paper mainly puts forward specific implementation measures for the difficulties encountered in the digital transformation of the transmitter.

关 键 词：地面数字电视发射机 数字化改造 自适应校正 

分 类 号：TN948.14[电子电信—信号与信息处理]