The evaluation of the error of the root-mean-square value of a signal determination, conditioned by the incongruity harmonic model and type of the real signal

There are considered the methods of approximate evaluation of influence of error components of the harmonic signal, which determine the incongruity of the model given and the modeling dependence, on the error of the result of measuring. There was made an analysis of the method of the instant determination of the error measuring of the integral characteristic as a function, arguments of which were given approximately to the error, corresponding to the model deflection of the real signal.