Double scattering approximation of the atmospheric laser location equation taking polarization effects into account

An equation is obtained for the Stokes vector of radiation twice scattered in the backwards direction, assuming that the transmitter and receiver have small angular apertures, that the pulse length is short, and that the receiver and the transmitter are monostatically placed.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii Fizika, No. 1, pp. 80–85, January, 1976.