上行激光在海水界面的传输特性的研究

J4 ›› 2012, Vol. 29 ›› Issue (5): 615-621.

上行激光在海水界面的传输特性的研究

徐强¹ 张玮¹ 刘洋¹ 康维宏²

1 西安电子科技大学理学院, 陕西西安 710071;
2 西北大学信息科学与技术学院，陕西西安 710127

收稿日期:2011-07-05 修回日期:2011-09-12 出版日期:2012-09-28 发布日期:2012-09-02
通讯作者: 徐强(1973-) 副教授，硕士生导师，主要从事半导体激光与光电子学方面的研究. E-mail:qxu@xidian.edu.cn

Properties of uplink laser propagation through sea interface

XU Qiang¹, ZHANG Wei¹, LIU Yang¹, KANG Wei-hong²

1 School of Science, Xidian University, Xi’an 710071, China；
2 College of Information Science and Technology, Northwest University, Xi’an 710127, China

Received:2011-07-05 Revised:2011-09-12 Published:2012-09-28 Online:2012-09-02

摘要/Abstract

摘要：

针对采用“双叠加法”模拟海面时所出现的“锁相环”效应，本文根据海浪谱的窄带特性，选取不同风速下的频率采样范围，应用“频率方向对应法”对三维海面进行仿真，仿真结果真实的反映了三维海面的随机起伏情况；然后从菲涅尔公式出发，对上行激光通过海水-空气界面时的反射、折射特性以及能量总透射率进行了分析和仿真，仿真结果表明风速的变化和上行激光在海面的入射角极大地影响了其能量透射率。最后，分析了上行激光通过三维起伏海面时的散射效应。

关键词: 光通信, 激光对潜通信, 上行激光, 频率方向对应法, 三维起伏海面

Abstract:

For the "phase-locked loop" effect occurs in sea surface’s simulation by using "double-superposition method," sampling frequency of different wind speeds are selected according to the waves’ narrow-band spectral characteristics. Three-dimensional random sea-surface is simulated by using the method of “frequency corresponding to the direction”. The simulation results reflect sea-surface actually. Then starting from Fresnel formula, the reflection、refraction and the total energy transmittance of the uplink laser that propagation through sea-surface is analyzed. The simulation results show that the wind speed changing and incidence angle of uplink laser have a great effect on the energy transmission rate. Finally, the scattering effect of the uplink laser through sea surface is analyzed.

Key words: laser submarine communication, uplink laser, frequency corresponding to the direction method, three-dimensional undulating sea surface

中图分类号:

TN929

徐强张玮刘洋康维宏. 上行激光在海水界面的传输特性的研究[J]. J4, 2012, 29(5): 615-621.

XU Qiang, ZHANG Wei, LIU Yang, KANG Wei-hong. Properties of uplink laser propagation through sea interface[J]. J4, 2012, 29(5): 615-621.

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