V.A. Ivanov, D.V. Ivanov, M.I. Ryabova

Modern digital systems of high-frequency (HF) communications require the creation of new systems provide frequency, allowing to analyze the propagation conditions simultaneously in all the radio channels. Therefore, the present studies of the ionospheric signals in accordance with their compression in the receiver are particularly relevant. The main physical effects that influence the distortion of signals with spread spectrum (CDS) and the partial characteristics of radio propagation at kvazizenitnom (CDR) are the polarization interference and frequency dispersion. To study these phenomena, you can use a hybrid approach, where the spread in the environment is replaced by the passage of a signal in a multi-dimensional electronic system (radio channel). The characteristics of such a system can be obtained by solving the corresponding physical problems or measured in the experiment. The present paper discusses the approaches and results of a study on the effect of the distortion effect of the polarization interference. The stochastic characteristics of partial radio channels at quasiantiaircraft distribution are considered. The expressions for defining the polarization coherence bandwidth for the cases of intersect and not intersect dispersion characteristics magnetoionic component are obtained. Studied diurnal variations of frequency domain with a strong polarization interference.