The problem of parametric identification of a field electron emission (FEE) signal is studied in the paper. The current response dependence on the voltage factor is investigated in terms of mathematical modeling by the least squares method.
Attention is paid to the influence of the factor error on the parameters вetermination. It was found that after linearization of the response, the residuals of the regression model should show heteroscedasticity. At the same time, the autocorrelation effect was also checked. The Goldfeld—Quandt and Durbin—
Watson tests, respectively, were performed. The significance of the regression model was monitored using Fisher’s statistics. The normality of the residuals was investigated using the Shapiro—Wilk test.