Transmission of Optical Beams through the Atmospheric Channel
| Parent link: | Actual Problems of Electronic Instrument Engineering (APEIE): proceedings of the XV International Scientific-Technical Conference, Novosibirsk, November 19-21, 2021. [P. 365-370].— , 2021 |
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| Other Authors: | , , , , , |
| Summary: | Title screen Based on the review and analysis of well-known scientific works in the field of wireless optical communication, the results of calculating the volumetric scattering coefficients of haze for a visibility range of 10 km are presented, also the article talks about predicting the most likely refractive values. The refraction forecast must meet two main requirements: to provide information on the most favorable “refractive weather” at the location of the optical system for a particular purpose and to provide the most optimal operating mode and the introduction of the necessary corrections. In accordance with this, two types of forecast can be distinguished - long-term and short-term. Estimates of the influence of scattering on the atmospheric path on the contrast of distant objects show that absorbing aerosol leads to a slight change in contrast, and the visibility decreases, understood as the ratio of the luminous flux to the threshold luminous flux for human eyes or a measuring device. The scattering aerosol causes a veil (background) to appear, and therefore a decrease in contrast and a decrease in visibility. This is due to the presence of a bright screen between the observer and the object. The side illumination of the absorbing aerosol does not lead to a significant change in the situation. Illumination of the scattering aerosol results in an additional reduction in contrast. Режим доступа: по договору с организацией-держателем ресурса |
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2021
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| Online Access: | https://doi.org/10.1109/APEIE52976.2021.9647557 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668252 |