摘要
天馈系统在整个广播电视信号无线覆盖系统中处于最终环节,承载着大功率射频信号,同时暴露在室外。天馈系统的工作状态好坏对确保整个发射系统的安全性和经济性具有十分重要意义。基于分布式光纤测温技术设计的分布式天馈线温度监测系统,通过分析天馈线温度场和动态馈线承载功率能,及时发现天馈系统运行中存在的安全隐患,对预防事故发生具有重要的工程使用价值。
Carrying RF signal of high voltage, high current and high power and working in poor environment, and antenna system is prone to failure. Distributed antenna temperature monitoring system based on distributed optical fiber temperature sensor can find risk in antenna system by analyzing antenna's temperature field and dynamic feeder load power. And it has important value for accident prevention.
出处
《广播与电视技术》
2013年第9期106-106,108,109,共3页
Radio & TV Broadcast Engineering
