Anand N, Satheesh S K, Krishna Moorthy K
Opt Lett. 2017 Jul 15;42(14):2714-2717. doi: 10.1364/OL.42.002714.
Effects of absorbing atmospheric aerosols in modulating the tropospheric refractive index structure parameter (Cn2) are estimated using high resolution radiosonde and multi-satellite data along with a radiative transfer model. We report the influence of variations in residence time and vertical distribution of aerosols in modulating Cn2 and why the aerosol induced atmospheric heating needs to be considered while estimating a free space optical communication link budget. The results show that performance of the link is seriously affected if large concentrations of absorbing aerosols reside for a long time in the atmospheric path.
利用高分辨率探空仪和多卫星数据以及辐射传输模型，估算了吸收大气气溶胶对调制对流层折射率结构参数（Cn2）的影响。我们报告了气溶胶停留时间和垂直分布的变化对调制Cn2的影响，以及在估算自由空间光通信链路预算时为何需要考虑气溶胶引起的大气加热。结果表明，如果大量吸收性气溶胶长时间存在于大气路径中，链路性能将受到严重影响。
