摘要
针对采用双叠加法模拟海面时所出现的锁相环效应,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,仿真结果真实地反映了三维海面的随机起伏情况;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。
For the phase-locked loop effect occured in sea surface＇s sinmlation by using double-superposition method, sampling frequency of different wind speeds is 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 the reflection, refraction and the total energy transmittance of the uplink laser that propagation through sea-surface are analyzed and simulated by Fresnel formula. The 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.
出处
《量子电子学报》
CAS
CSCD
北大核心
2012年第5期615-621,共7页
Chinese Journal of Quantum Electronics
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
optical communications
laser submarine communication
uplink laser
frequency corresponding to the direction method
three-dimensional undulating sea surface
