... SCM State Change Management 状态变换管理 SCM SubCarrier Modulation 副载波调制 SCM SubCarrier Multiplexed 副载波复用 ...
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... 因为信号是用光波传输的,载波对光波而言只扮演着副载波的作 用,所以这种技术就称为副载波调制(SCM,Subcarrier modulation)。
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该方案利用频移键控频分复用(FSK FDM)技术进行声频副载波调制,通过光强度调制实现远程在线EDFA监控信息随主信号的传输。
In the scheme, FSK-FDM technique is used in subcarrier modulation, and the EDFA's supervisory information is transmitted by optical intensity modulation.
第三,对采用不同调制格式(包括幅移键控和二进制相移键控)的光副载波复用(OSCM)系统中,PMD引起的功率代价进行了量化。
Thirdly, we quantify the power penalty caused by the PMD in optical subcarrier multiplexing (OSCM) system with amplitude shift keying (ASK) and binary phase shift keying (BPSK).
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