Frequency estimation methods for stationary signals

Currently, the frequency measurement is one of the most essential tasks of measurement technology. There are many digital methods of measuring frequency, with very different static and dynamic methodological errors of measurement and complexity of the final implementation. In the article the comparative analysis of metrological characteristics of the most popular digital methods of frequency measurement for the case of sinusoidal input of polyharmonic signals and in the presence of random noise and flicker. The results obtained by mathematical simulation performed in the software package Matlab.