G.G. Vertogradov, S.V. Kubatko, V.P. Uryadov
The method of electron density profile parameters definition by results of oblique ionospheric chirp-sounding with LFM-ionosonde/direction-finder is developed. The LFM-ionosonde/direction-finder allows measure distant-frequency characteristic and direction-frequency characteristic. The algorithm is tested on radio paths under different physical conditions. It is shown that this method makes the ionosphere model’s parameters definition results two times accurate.