Aerospace Instrument-Making Annotation << Back METHOD FOR PARAMETRIC IDENTIFICATION OF THE REFLECTIVE-RADIATIVE CHARACTERISTIC OF A MATERIAL AS A FUNCTION OF TEMPERATURE N.O. Borshchev This paper presents a method for identifying the integral emissivity of a material as a function of temperature. This problem is solved as a problem of finding the global minimum of the root-mean-square error between the theoretical and experimental temperature field in the places where the temperature sensors are installed. This problem is considered incorrect due to the ambiguity of the input source data. To do this, iterative regularization is used, where the iteration number acts as a regularized parameter. The meaning of this method is to assume a minimum standard deviation at all iterations. Minimization is carried out by the method of conjugate directions, as the most accurate method of the first order of convergence. The criterion for stopping the iterative process is the sum of errors: measurements, problem statement, solution method. Keywords: inverse heat conduction problem, iterative regularization method, root mean square error, temperature field, spacecraft. DOI: 10.25791/aviakosmos.11.2022.1309 Pp. 39-47.