Investigation of transmission of light through rain

Jiabi Chen; Zhonghua Hu; Dawei Zhang; Songlin Zhuang

doi:10.1117/12.794668

19 August 2008 Investigation of transmission of light through rain

Jiabi Chen, Zhonghua Hu, Dawei Zhang, Songlin Zhuang

Proceedings Volume 7091, Free-Space Laser Communications VIII; 70910V (2008) https://doi.org/10.1117/12.794668
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

Transmission property of light through rain is discussed in this paper. Instead of the scattering methods usually used in predicting rainfall attenuation, the principle of the blotting-out effect of raindrops on light transmission is introduced. Based on this principle and an accurate raindrop size distribution, an initial model for predicting the attenuation due to rain is first set up. However, when it rains heavily, this initial model is not accurate enough because the overlap effect between the projected circles of raindrops is not considered. Therefore, by considering the blotting-out and overlap effect of raindrops together with an accurate raindrop size distribution, a more accurate model for predicting the attenuation due to rain is finally derived. Numerical simulations show that this model is in good agreement with experimental results.

Citation Download Citation

Jiabi Chen, Zhonghua Hu, Dawei Zhang, and Songlin Zhuang "Investigation of transmission of light through rain", Proc. SPIE 7091, Free-Space Laser Communications VIII, 70910V (19 August 2008); https://doi.org/10.1117/12.794668

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