| 吴晓军,王红星,宋博,李笔锋.不同环境下光强起伏测量与传输特性研究[J].光电子激光,2015,26(6):1138~1145 |
| 不同环境下光强起伏测量与传输特性研究 |
| Measurement of optical intensity fluctuation and study of transmission character istics under different environment conditions |
| 投稿时间：2015-02-02 |
| DOI： |
| 中文关键词: 激光传输 大气湍流 近海面环境 公路环境 光强起伏 孔径平均 |
| 英文关键词:laser propagation atmospheric turbulence sea environment road environment optical intensity fluctuation aperture averaging |
| 基金项目:山东省自然科学青年基金(ZR2013FQ010)和山东省“泰山学者”建设工程专项经费(ts20081330)资助项目 (海军航空工程学院 电子信息工程系,山东省信号与信息处理重点实验 室,山东 烟台 264001) |
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| 中文摘要: |
| 利用大孔径闪烁仪对公路环境和近海面环境进行了 4次链路长分别为1.4km和0.9km的激光传输 特性测试, 研究激光在两种环境下的传输特性以及它们之间存在的差异。在实测数据基础 上,分析了大气折射率结构常数和Rytov方差的变化规律,得出公路环境与近海面环 境下湍流强弱程度和光强起伏程度的差异；通过对孔径平均效应影响下的光强信号 分析,研究了不同传输环境下激光的传输特性。本文所得到的结论将有助于大气光学研究 以及无线光通信系统设计。 |
| 英文摘要: |
| There are some differences in optical intensity signals under differ ent transmission environment conditions,which is affected by atmospheric turbulence.In order to s tudy the transmission characteristics of optical intensity signals and the differences between the m,this paper presents some experiment results of 4measurements of laser transmission over the road an d the sea surface environment by using the large aperture scintillometer,and the optical path di stances are 1.4km and 0.9km,respectively.Based on the measured data,firstly,the change trends of atmo spheric refractive index structure constant and Rytov variance are analyzed and the diff erences of the degree of turbulence and optical intensity fluctuation are studied over the road and th e sea surface environment.Secondly,the transmission characteristics are studied by analyzing t he optical intensity signals of aperture averaging over these two kinds of environment.It is anticipated that this kind of signal data analysis is good for the study on atmospheric optics and free space optical communication system development. |
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