| 关于电视群信号对光纤副载波调频传输中的信噪比平衡问题的分析 |
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| 引用本文： | 野锦德,沈保锁.关于电视群信号对光纤副载波调频传输中的信噪比平衡问题的分析[J].微波学报,1996,12(4):259-263. |
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| 作者姓名： | 野锦德 沈保锁 |
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| 作者单位： | 天津大学电子工程系 天津300072
(野锦德)，天津大学电子工程系 天津300072(沈保锁) |
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| 摘 要： | 本文对微波副载波用电视群信号调频的光纤传输中的信噪比平衡问题进行了分析,推导出VSB-AM信号在解调后的信噪比表达式,引入了信噪比恶化系数的概念.为了实现多路VSB-AM信号间的信噪比的平衡,相应的微波副载波频偏应有确定的比例关系.
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| 关 键 词： | 副载波 群信号 调频 信噪比平衡 光纤通信 |
The Balance Analysis of Signal-to-Noise Ratio for FM-SCM Fiber Transmission Using TV Group Modulation |
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| Ye Jinde,Shen Baosuo.The Balance Analysis of Signal-to-Noise Ratio for FM-SCM Fiber Transmission Using TV Group Modulation[J].Journal of Microwaves,1996,12(4):259-263. |
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| Authors: | Ye Jinde Shen Baosuo |
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| Abstract: | In this paper the balance of signal -to-noise ratio(S/N)between the group signals in FM-SCM systems is analysed. The formula of S/N for VSB-AM signals are derived . The concept of degradation coefficient of S/N is introduced. In order to realize the balance of S/N between VSB-AM signals in FM-SCM systems, definite proportional relationships should exist between the subcarrier frequency deviations produced by corresponding VSB-AM signals. |
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| Keywords: | Subcarrier multiplexing Group signal FM Signal-to-noise ratio balance Fiber-optic communication |
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