| 海底光缆探测中信号衰减的特性研究 |
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| 引用本文： | 林超,周学军,周媛媛. 海底光缆探测中信号衰减的特性研究[J]. 光通信研究, 2011, 0(5): 22-24 |
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| 作者姓名： | 林超 周学军 周媛媛 |
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| 作者单位： | 海军工程大学电子工程学院; |
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| 摘 要： | 海底光缆故障定位主要采用电场法和磁场法,文章根据传输理论,分别推导了这两种方法下信号在海缆导体中的衰减公式,分析了其衰减特性.数值仿真表明:当故障点与岸端距离达1 000 km时,在某型号海缆中,使用磁场法探测,衰减超过95％；而使用电场法探测,则不到8％,在抗衰减方面,电场法要远远优于磁场法.
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| 关 键 词： | 海底光缆 故障定位 电场法 磁场法 信号衰减 |
Research on the features of signal attenuation in submarine cable detection |
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| Lin Chao,Zhou Xuejun,Zhou Yuanyuan. Research on the features of signal attenuation in submarine cable detection[J]. Study on Optical Communications, 2011, 0(5): 22-24 |
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| Authors: | Lin Chao Zhou Xuejun Zhou Yuanyuan |
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| Affiliation: | Lin Chao,Zhou Xuejun,Zhou Yuanyuan(Electronic Engineering Institute,Naval University of Engineering,Wuhan 430033,China) |
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| Abstract: | Submarine cable faults are located mainly by using the electric field method and the magnetic field method.On the basis of the transmission theory,the formula for signal attenuation in the submarine cable conductors are deduced when the two methods are used and the signal attenuation features analyzed.Numerical simulation results show that when the fault point is 1 000 km away from the shore end,the attenuation in certain type of cable is over 95% when the magnetic field method is used,but when the electric... |
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| Keywords: | submarine cable fault location the electric field method the magnetic field method signal attenuation |
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