Active impact on the ionosphere and variations of velocity characteristics of field-aligned irregularities

Vladimir Sivokon,A Dmitriev,Z Rakhmonov,N Salikhov,G Vodinchar

doi:10.1051/e3sconf/202019602002

Abstract

Ionospheric irregularities make significant impact on the efficiency of radio-engineering system operation. Our investigations carried out on Kamchatka peninsula showed that field-aligned irregularities have particularly destructive influence on decame-ter radars. We pin some definite expectations with them to increase the efficiency ofradio-engineering systems by active impact on the ionosphere. One of the important parameters of such irregularities is their velocity characteristics. When determining irregularity velocity in the impact area, different approaches are used, for example, aspect scattering method which specifies velocity on the whole but does not allow one to determine its vertical and horizontal components, direction of its motion. We have developed an ap-proach which allows us to solve this problem. As an example, results of observations over EISCAT experiments in October 2019 are presented.

Highlights

Our investigations [1] showed that presence of a special class of ionospheric irregularities, fieldaligned ones, is acute for beyond-the-horizon radio location. This type of irregularities is of interest during active impact on the ionosphere [2]
We suggested a method [6] which included generally acceptable software-defined SDR receivers (SoftDefinedRadio)
A network of SDR receivers installed in Europe, in particular, make it possible to record electromagnetic radiation from the impact area within the line-of-sight, that minimizes the ionosphere impact

Summary

Introduction

Our investigations [1] showed that presence of a special class of ionospheric irregularities, fieldaligned ones, is acute for beyond-the-horizon radio location. In order to estimate the parameters of artificial irregularities of the ionosphere, different methods are applied, for example, test wave [3], aspect [4] and backward scattering [5] methods. To realize these methods one needs complex equipment unpurchasable for the majority of researches. Results of the observation over the experiments taking place in October 2019 are described in the paper

Method justification

Observation results

Conclusions