摘要
论述了数字微波N+1波道备用系统中无损伤切换的设计及操作要点。以1+1 34Mbit/s无损伤切换为例,介绍改进型逐位码比较法的无损伤切换方案,对其中关键部件比特差检测电路进行了设计和概率计算,并给出优化设计的结果,使漏调和误调的概率小于10^(-35)量级。
In this paper, the significance and fundamental requiremetns of Hitless Switching System for multichannel digital microwave are described, the design guidelines and operating features of a Hitless Switching System in N+1 configuration are discussed also. Finally, a example of 1+1 34Mbit/s is set to explain a improvement Hitless Switching System scheme with bit by bit comparison in which, the probabili-ty of loss adjustmern and miss adjustment is less then 10^(-35) separatelv.
出处
《电信科学》
北大核心
1993年第3期31-37,共7页
Telecommunications Science
关键词
无损伤切换
切换设备
微波传输系统
hitless switching
multipath faidng
equalize
bit by bit comparison
frequency diversity
