载波主群信号编码设备帧同步系统的设计与性能分析
本文叙述了载波主群信号编码设备帧同步系统的设计。本设计采用分散型码组定帧比较方式。文中提供了具体电路,经实践证明电路布局合理,工作稳定可靠。对所采用同步方式的捕捉时间从理论上作了探讨,并导出一组实用计算公式。在这里第一次比较了三种不同帧同步方式的捕捉速度,以不同帧长度和帧码所占比例为参数划出了相应曲线进行了对比。从这里可以看出从捕捉时间的角度来考虑选取何种帧同步方式方为合适。结论:本设备的最大捕捉时间为31个T帧,即43μs。这个捕捉速度相对于载波主群以ms计的倒挽时间来看是足够快的了。...
| Published in: | Guangtongxin yanjiu |
|---|---|
| Main Authors: | 王振瀛, 黄培贞 |
| Format: | Article |
| Language: | Chinese |
| Published: |
《光通信研究》编辑部
1981-01-01
|
| Online Access: | http://www.gtxyj.com.cn/thesisDetails#10.13756/j.gtxyj.1981.01.004 |
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