Investigation of the parameters of signals reflected from the ionosphere on the basis of regular radio-field measurements performed in the long-wave band

Abstract

Diurnal and seasonal variations of the signal reflected from the ionosphere are investigated on the basis of regular measurements of the amplitude and phase of the radio field of a reference radio station operating at a frequency of 50 kHz. The reflected signal is extracted from the mixture of the ground-wavel and reflected-wave fields using a special procedure. Effective parameters of an exponential ionospheric model, which characterize the statistical parameters of the signals in the long-wave band at medium distances, are proposed.