Doppler frequency shifts of radio waves reflected by parabolic and quasi-parabolic ionospheric layers

Details Doppler frequency shifts of radio waves reflected by parabolic and quasi-parabolic ionospheric layers Doppler frequency shifts of radio waves reflected by parabolic and quasi-parabolic ionospheric layers

Apr 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jatp...44..305b&link_type=abstract

Journal of Atmospheric and Terrestrial Physics, vol. 44, Apr. 1982, p. 305-311.

Physics

2

Atmospheric Stratification, Doppler Effect, Frequency Shift, Ionospheric Electron Density, Ionospheric Propagation, Radio Echoes, Atmospheric Models, Long Wave Radiation, Parabolas, Radio Communication, Radio Frequencies, Reflectors

Scientific paper

Consideration is given to Doppler frequency shifts calculated for parabolic and quasi-parabolic models of the ionosphere. The analytical formulae obtained are used to study the Doppler frequency shift for the case of variations in total electron content. It has been shown that, if the operating frequencies are much below the maximum usable frequency (MUF), the Doppler shifts calculated in terms of the quasi-parabolic model can be satisfactorily described using formulae for an equivalent plane reflector. Special attention is paid to the study of the behavior of frequency shifts on ray paths near the penetration angle and near the MUF.

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