Search for: [Description = "The assessment of uncertainties of a two\-port noise parameters measurement, presented in the paper, relies on modeling of sources of errors and an investigation of propagation of the errors through a measurement system. This approach is based on a simplified additive error model and small\-change sensitivity analysis. The evaluated uncertainties agrees with those observed in experiments. This method may be implemented in automatic noise measurement systems for on\-line uncertainty assessment and for optimization of the design of an experiment."]