Vol. 20, issue 03, article # 15

Kaloshin G.A., Shishkin S.A. Calculation of the vision range for light signals from a navigation complex based on scanning electronically pumped semiconductor laser. Part. I. Power parameters of the light source and threshold characteristics of vision. // Atmospheric and oceanic optics. 2007. V. 20. No. 03. P. 260-264.
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Abstract:

Power and time characteristics of a navigation complex based on a scanning electronically pumped semiconductor laser are calculated. In this laser a semiconductor crystal is pumped with an electron beam being scanned across the crystal in the mode of TV-frame scan. The axial intensity of radiation at the output of a laser beacon was taken to be 131.2 W/sr at each of the three wavelengths: λ = 0.52, 0.57, and 0.63 μm. We have determined time and spatial characteristics of the orientation zone and the size of the "uncertainty zone". It is shown that the size of the uncertainty zone obtained cannot essentially spoil the quality of navigation information. The criteria for solving the vision problem are considered and spectral threshold and comfortable characteristics of vision are calculated depending on the conditions of observations.

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