1) C/CSO
载波组合二阶差拍比
2) C/CTB
载波组合三阶差拍比
5) composite third beat
组合三阶差拍
6) CTB
组合三次差拍比
1.
We introduce the concepts about carrier to noise ratio(CNR),CTB,XM and Eb/No in the field of CATV.
介绍了有线电视系统中的载噪比(CNR)、组合三次差拍比(CTB)、交调指数(XM)以及门限值(Eb/No)的含义,并讨论了载噪比与组合三次差拍比、交调指数以及门限值之间的关系。
2.
This article analyses in theory the factors that affect the specifications of noise and nonlinearity in optical fiber link, gives the expressions of CNR、CSO and CTB as well as the results measured in practical optical fiber link from the headend of WHCATV to Jinghan Garden.
结合有线电视网络,从理论上对影响光纤链路的噪声、非线性指标的相关因数进行了分析,提出了载噪比、组合二次差拍比、组合三次差拍比的近似表达式。
补充资料:电力线载波保护复用载波机
电力线载波保护复用载波机
multi purpose PLC equipment for teleprotection system
d一onl一x一on zolbo boohu fuyong 20一boJ-电力线载波保护复用载波机(multi purposePLC equiPment for teleProteetion system)见电力线载波机。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条