V.I. Zakharov, A.S. Zienko, V.E. Kunitsyn

In the present paper the influence of solar activity on navigation system GPS radio signals propagation is considered from the point of view of non-uniform structures occurrence in the ionosphere and their display on registered navigating signals. The analysis was carried out on based of joint application of methods GPS- radio interferometry and specially developed techniques of automatic statistical processing of wavelet-spectra of ionospheric signals registered with the help of global navigating systems GPS/GLONASS. The technique of automatic wavelet-spectra processing is based on the analysis of 2D-sections of wavelet-transformation for the ionospheric signals on the parameter-analogue of frequency. The results of the radio interferometry, wavelet, and spectral estimations for ionospheric inhomogenues structures allocated at stations of a network IGS in various regions - Europe and Northern America - are descussed.