Hilova O. The development of information processing methods for non-destructive testing of composite materials

The object of research is the process of diagnostics products aviation use of composites. The subject of research is the model of information signals in the diagnosis of composite materials, processing methods and data signals constructing decision rules. Improved model diagnostics products from composite materials based on linear stochastic processes, which allows us to investigate the statistical characteristics of the distributions of the coefficients of orthogonal expansions, as the characteristics of linear stationary processes. First, based on statistical analysis of the parameter estimates of orthogonal decomposition of information signals, developed the method of selection of diagnostic features that are sensitive to the appearance of defects. Further enhanced diagnostic decision making method for solving bezetalonnoy inspection of composite materials, allowing a given level of significance to diagnose a controlled product. Was further developed a method for constructing multiparameter decision rules based on the theory of pattern recognition, which provides increased reliability diagnostics composites.