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| Titel |
Anisotropy of ionospheric irregularities determined from the amplitude of satellite signals at a single receiver |
| VerfasserIn |
E. D. Tereshchenko, B. Z. Khudukon, M. O. Kozlova, T. Nygrén |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 17, no. 4 ; Nr. 17, no. 4, S.508-518 |
| Datensatznummer |
250013712
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| Publikation (Nr.) |
 copernicus.org/angeo-17-508-1999.pdf |
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| Zusammenfassung |
A new method of determining the anisotropy
parameters of small-scale irregularities in the ionospheric F region is
presented and experimental results are shown. The method is based on
observations of amplitude fluctuations of radio waves transmitted by satellites
flying above the F region. In practice, Russian navigational satellites are used
and both the amplitude and the phase of the received signal is measured on the
ground level. The method determines both the field-aligned anisotropy and the
field-perpendicular anisotropy and orientation of the spatial spectrum of the
irregularities, assuming that the contours of constant power have an elliptic
shape. A possibility of applying the method to amplitude tomography is also
discussed. Using a chain of receivers on the ground level, one could locate the
regions of small-scale irregularities as well as determine their relative
intensities. Then the large-scale background structures could be mapped
simultaneously by means of ordinary ray tomography using the phase observations,
and therefore the relations of small-scale and large-scale structures could be
investigated.
Key words. Ionosphere (auroral ionosphere; ionospheric
irregularities; instruments and techniques) |
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