Preliminary results of transionospheric sounding from the Intercosmos-19 satellite

Details Preliminary results of transionospheric sounding from the Intercosmos-19 satellite Preliminary results of transionospheric sounding from the Intercosmos-19 satellite

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ge%26ae..21.1117v&link_type=abstract

Geomagnetizm i Aeronomiia, vol. 21, Nov.-Dec. 1981, p. 1117-1120. In Russian.

Computer Science

Sound

Intercosmos Satellites, Ionograms, Ionospheric Sounding, Satellite Sounding, Atmospheric Sounding, Elevation Angle, Frequency Ranges, Signal Fading, Signal Reception, Solar Activity Effects

Scientific paper

The Intercosmos-19 ionospheric-sounding experiment involved the systematic reception of transionospheric signals at 338 fixed frequencies in the 0.3-16 MHz range. Preliminary results show that the dynamic measurement range of the frequency dependence of the group delay of transionospheric signals amounts to hundreds of kilometers. At small elevation angles of the satellite, the 'radius of curvature' of transionograms is smaller and the deflecting absorption at the cutoff frequency is greater than for large elevation angles. The preliminary results confirm the feasibility of using transionospheric channels for the sounding of the ionosphere.

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