Vol. 11, issue 09, article # 13

pdf Veretennikov V. V. Lidar geometrical factor in a small-angle approximation. // Atmospheric and oceanic optics. 1998. V. 11. No. 09. P. 858-862.
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An exact analytical description of the geometrical factor of a lidar is obtained as an integral of a product of the Bessel functions within the framework of a small-angle approximation. A way to represent it in terms of elementary functions is proposed. The behavior of the geometrical factor along a path is analyzed for the case of sounding with separated source and receiver.