中波台音频信号源保障及控制系统的设计  

Design of Audio Signal Source Guarantee and Control System for Medium Wave Station

作　　者：吴云霞 WU Yunxia(Xinjiang Radio and Television Bureau Program Transmission Center 6501,Urumqi 830000,China)

机构地区：[1]新疆广播电视局节目传输中心6501台,新疆乌鲁木齐830000

出　　处：《电声技术》2021年第3期72-74,共3页Audio Engineering

摘　　要：信号源是中波广播发射台安全播出最重要的环节之一。采用数字信号处理技术,设计一套中波台音频信号源保障及控制系统,可为发射机提供稳定可靠的音频信号,可在无人干预的情况下实现主备信号的智能切换、音频幅度的实时智能调整、信号质量的实时监测、节目内容的全程录制、前端设备工作状态的实时监测监视以及异态智能报警。The signal source is one of the most important links in the safe broadcast of medium wave broadcasting transmitting station.Using digital signal processing technology,a set of medium wave station audio signal source guarantee and control system is designed,which can realize intelligent switching of main and standby signals,real-time intelligent adjustment of audio amplitude,real-time monitoring of signal quality,whole process recording of program content,real-time monitoring of front-end equipment working state and various intelligent alarm modes in case of no intervention.

关 键 词：数字信号处理 自动电平控制 高速嵌入式单片机 高精度信号传感 

分 类 号：TN934.81[电子电信—信号与信息处理]