基于频分复用技术的视频遥测  

Video Telemetry Based on Frequency Division Multiplexing Technique

作　　者：孙发鱼[1,2] 于敏[1] 郑海起[2] 

机构地区：[1]西安机电信息研究所,陕西西安710065 [2]军械工程学院火炮工程系,河北石家庄050003

出　　处：《探测与控制学报》2008年第5期26-29,共4页Journal of Detection & Control

基　　金：兵器预研支撑基金项目资助(62301110711)

摘　　要：为了充分发挥模拟和数字视频图像传输的各自优点,将模拟调频(FM)和数字脉冲编码调制(PCM/FM)体制有效结合起来,采用频分复用体制,传输不同频谱特性的信号。关键技术包括视频图像的低门限调频解调和PCM/FM数字鉴频等。试验测试结果表明:频分复用传输体制实现的视频遥测系统具有数据传输抗干扰能力强和图像在高动态条件下传输实时性强等优点。To take the advantage of analogous and digital image,FM system is combined with PCM/FM system.And frequency division multiplexing system is used to transmit different spectrum characteristics signals.The key techniques include low threshold FM demodulation and PCM/FM digital frequency discriminator.Test results shows that the video telemetry with frequency division multiplexing technique has the advantage of strong interference-free ability and realtime property under high dynamic transmission.

关 键 词：视频遥测 调频 锁相鉴频 数字解调 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]