DAM中波广播发射机的A/D转换电路探究  

Research on A/D Conversion Circuit of Dam Medium Wave Broadcast Transmitter

作　　者：刘妍 刘倩倩 LIU Yan;LIU Qianqian(Henan Xinxiang Medium Wave Broadcast Relaying Stations,Xinxiang 453003,China)

机构地区：[1]新乡中波转播台,河南新乡453003

出　　处：《通信电源技术》2022年第1期165-167,共3页Telecom Power Technology

摘　　要：中波广播发射机模拟/数字(Analog/Digital,A/D)转换技术主要是通过转换电路将来自模拟输入电路中的音频+直流信号转变为12 bit的数字信号,从而实现信号传播与辐射。通过详细分析中波广播发射机的A/D转换电路工作原理,找出其中存在的问题并提出相应的优化措施,从而为下一阶段数字资产管理(Digital Asset Management,DAM)中波广播发射机信号覆盖范围的提升起到一定的推进作用,保障节目播出的高质量和不间断性。Medium wave broadcast transmitter A/D conversion technology is mainly through the conversion circuit from the analog input circuit audio+DC signal into 12 bit digital signal,so as to achieve signal transmission and radiation.By analyzing the working principle of A/D conversion circuit of medium-wave broadcast transmitter in detail,the existing problems are found and the corresponding optimization measures are put forward,so as to promote the signal coverage of medium-wave broadcast transmitter in the next stage of Digital Asset Management(DAM).Ensure the high quality and continuity of the program broadcast.

关 键 词：数字资产管理(DAM) 中波广播 模拟/数字(A/D)转换电路 广播发射机 

分 类 号：TN9[电子电信—信息与通信工程]