Aerospace Instrument-Making Annotation << Back OPTICAL IMPULSE TRANSFER ON THE TERRA-SPACE TRACE UNDER THE CLOUD CONDITION V.P. BusyginN.G. BusyginaYu.P. VaginI.Yu. Kuzmina The role of clouds examines in the transport problem of the pulsed optical radiation though the atmosphere into space. Spatial-temporal characteristics of the radiation field are calculated by the Monte-Carlo method. We study the behaviors of the atmospheric transparence coefficient (the relative density of the radiation flux on the spacecraft) for clouds with optical thickness from a fraction of one to hundreds units of sight and zenith angles from zero to 60 degrees. Shown that the maximum of the transparence coefficient is about two units in the optical thickness of 1 to 5 units and its minimum values are not lowered out below of 0,01 unit. The relationships of the informative features of the radi-ation field temporal characteristics with the parameters of cloudiness are found. In par-ticular, the analytical expressions are reveal for the viewing angels are close to zero. The expressions relate the pulse characteristic mode and the slope of the transfer function edge with the optical thickness of the clouds. It is shown that in the first case the relation is almost linear, and in the second case the relation is the fractionally-rational approximation (function). Key words: source, cloud layer, terra-space trace, remote observer, flux density, Monte-Carlo method Contacts: E-mail: IrKuzmina@bk.ru Pp. 03-11.