Wave structure function of light wave propagating in turbulent atmosphere
-
摘要: 在湍流大气对传输光波调制的双尺度湍涡(大尺度湍涡和小尺度湍涡)近似下,研究了用于计算描述湍流大气中传输光波相干长度变化的核心函数(互相干函数)的关键因子波结构函数(WSF),通过建立包含不同尺度湍流因子的折射率起伏谱密度函数,导出了可以用于精确理论分析平面波与球面波在湍流大气中传播时所产生的诸如到达角起伏和相干性变化等效应的波相位结构函数的精确解析式,同时给出了便于数值计算的近似误差在2%范围以内的波相位结构函数的精确渐近表达式。
-
关键词:
- 光波传播 /
- 大气湍流 /
- 折射率起伏谱密度函数 /
- 相位结构函数
Abstract: In the approximation of the modulation process of two scale-eddies (inner-scale and outer-scale eddies) for light wave propagation in turbulent atmosphere,we study the wave structure function(WSF) used to calculate the mutual coherence function from which the transverse coherence length can readily be determined for an infinite plane wave or spherical wave.Analytical expressions are derived by means of the development of the modulation model of the power spectral density of the refractive-index fluctuations which include the factor of small-scale and large-scale sizes turbulence eddies for the wave structure function associated with the propagation of infinite plane waves and spherical waves through isotropic and homogeneous turbulence.For computational case,the approximation expressions for the structure function of infinite plane waves and spherical waves propagating through isotropic and homogeneous turbulence are also developed by simple interpolation method,whose error is less than 2%. -
-
[1] SASIELA R J,SHELTON J D.Transverse spectral filtering and mellin transform techniques applied to the effect of outer scale on tilt and tilt anisoplanatism [J].J O S A,1993,A10(4):646～660.
[2] CHESNOKOV S S,SKIPETROV S E.Optical resolution throughatmospheric turbulence with finite outer scale [J].Opt Commun,1997,141(1):113～117.
[3] LAWRENCE R S,STROHBEHN J W.A survey of clear-air propagation effects relevant to optical communications [J].Proc IEEE,1970,58(10):1523～1545.
[4] LUTOMIRSKI R F,YURA H T.Wave structure function and mutual coherence function of an optical wave in a turbulent atmosphere [J].J O S A,1971,61(4):482～492.
[5] ANDREWS L C,PHILLIPS R L.Laser beam propagation through random media [M].Washington:SPIE Optical Engineering Press,1998.53～55.
[6] ANDREWS L C,VESTER S.Analytic expressions for the wavestructure function based on a bump spectral model for refractive index fluctuations [J].J Modern Opt,1993,40(5):591～598.
[7] ANDREWS L C,AL-HALASH M A,HOPEN C Y et al.Theory of optical scintillation:Gaussian-beam wave model [J].Wave Random Media,2001,11(2):271～291.
[8] ANDREWS L C,PHILLIPS R L,HOPEN C Y.Aperture averaging of optical scintillations:power fluctuations and the temporal spectrum [J].Wave Random Media,2000,10(1):53～70.
[9] 塔塔斯基 V I.湍流大气中波的传播理论 [M].北京:科学出版社,1978.109～144. [10] VOISEKHOVICH V V.Outer scale of turbulence:comparison of different models [J].J O S A,1995,A12(6):1346～1353.
-
期刊类型引用(11)
1. 孟祥艳，张欣，张峰，赵黎，李帅. 融合迁移特征学习的生物启发网络用于可见光成像室内位置感知方法. 中国激光. 2023(10): 176-183 . 
百度学术
2. 赵黎，刘海涛，陈俊波. 基于采用天牛须搜索算法优化神经网络的可见光室内定位方法. 光通信技术. 2022(02): 1-7 . 百度学术
3. 张慧颖，王凯，于海越，牟昊. 基于自适应Levy飞行的黄金正弦可见光定位研究. 激光技术. 2022(04): 519-524 . 本站查看
4. 赵黎，韩中达，张峰. 基于神经网络的可见光室内立体定位研究. 中国激光. 2021(07): 145-154 . 百度学术
5. 张雨桐，赵黎，张峰. 基于小波变换的可见光OFDM通信系统性能优化. 激光技术. 2020(02): 261-265 . 本站查看
6. 宋素真，桂林，杨晨，郑艺璇，陈璟，朱玉绚. 可见光通信应用于安全支付有效区域的研究. 上海第二工业大学学报. 2020(03): 207-212 . 百度学术
7. 陈立胜，于丽娜. 基于虚拟光学的室内三维空间视觉合理性设计. 激光杂志. 2020(11): 183-187 . 百度学术
8. 陈怡然，廖宁. 基于激光图像处理技术的目标定位系统. 激光杂志. 2019(08): 77-80 . 百度学术
9. 朱瑞晨，曹宇彤，索朝举，刘洋洋，刘伟伟. 基于LED可见光技术的室内车辆定位系统设计. 电脑知识与技术. 2019(22): 228-230 . 百度学术
10. 左肖，邵建华，沈宏杰，安爽. 自然环境光下的室内可见光定位系统. 激光杂志. 2019(11): 7-11 . 百度学术
11. 杨康，赵黎. 基于VLC和PLC的智慧照明系统. 激光杂志. 2019(12): 72-75 . 百度学术
其他类型引用(8)
计量
- 文章访问数: 2
- HTML全文浏览量: 0
- PDF下载量: 15
- 被引次数: 19
下载: