AN INVERSE PROBLEM OF SIMULTANEOUS ESTIMATION OF RADIATION PHASE FUNCTION, ALBEDO AND OPTICAL-THICKNESS

An inverse analysis is presented for simultaneous estimation of optica l thickness, single scattering albedo and the coefficients of phase fu nction for an anisotropic scattering plane-parallel medium. The Levenb erg-Marquardt method of minimization is used to solve the resulting no nlinear system of algebraic equations. Forward and backward scattering phase functions are considered, and the effects of the magnitudes of single scattering albedo and optical thickness on the accuracy of the estimations are examined. The confidence bounds are established for th e estimated values of the single scattering albedo, the optical thickn ess and the coefficients of the phase function.