视频同轴电缆抗干扰研究

Research on Anti-jamming of Video Frequency Coaxial Cable

为了贯彻落实公安部"安防工程"的部署,全国各地都安装了视频监控系统。但由于视频监控系统大多采用同轴电缆传输信号,而同轴电缆的干扰问题是最为严重的。因而,解决同轴电缆的干扰成为了解决视频系统干扰的首要问题。分析了视频同轴电缆存在视频干扰的原因,提出排除干扰的方法,以使监控设备更好地发挥作用。

In order to implement and realize ministry of public security the deployment of ＂ engineering of security＆ protection system＂ , the land has installed the video frequency supervisory system. But because the video frequency supervisory system mostly uses the coaxial cable transmission signal, but coaxial cable＇s disturbance ques- tion is most serious. Therefore, which solves coaxial cable＇s disturbance becomes the most important question of solving video frequency system disturbance. Analyses the reasons of exist video interference in video coaxial cable, puts forward the methods of excluding interference, enables the monitoring equipment to play the better role.