Power of Laser Target Signal from Rough Earth Surface in Hazy Atmosphere

The paper is concerned with investigation of power of a laser target signal from the rough earth surface in hazy (optically-dense) atmosphere. The paper examines a common case of bistatic location wherein the transmitter and receiver of the laser locator are situated in different points of coordinate space. We found an analytic expression for the received power of the laser target signal for lighting the rough surface with local indicatrix of reflection, comprised of diffuse (wide angle) and quasispecular (narrow angle) components by a narrow laser beam in turbid medium. The formula makes it possible to correctly describe the relationship between the power of the laser target signal and the distance to surface both in optically-transparent earth atmosphere (on initial section of location line), and in optically-dense earth atmosphere (for long distance laser radar from surface).

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