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Inversion of the Plasma Signal in GNSS Occultations — Simulation Studies and Sample Results

  • Tomography and occultation
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Abstract

In the near future the reception of GNSS (Global Navigation Satellite Systems, presently GPS and GLONASS) signals onboard low orbiting satellites will play an important role. If GNSS occultation can be observed, one can “measure” satellite to satellite electron content (hTEC) by means of “Differential Doppler” (carrier phase difference). In case of occultations with suitable ray geometry, inversion of the hTEC data gives horizontally averaged height profiles of electron density.

We demonstrate by means of model calculations that at mid latitudes the inversion results are representative electron density profiles with high accuracy of F layer peak height.

One receiver — GPS/Met onboard the small satellite MicroLab 1 — has been launched in April of 1995 and provided the data for sample results demonstrating the practical applicability of the inversion technique.

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Authors and Affiliations

  1. Institut für Meteorologie und Geophysik, Universität Graz, Halbärthgasse 1, A-8010, Graz, Austria

    R. Leitinger & G. Kirchengast

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  1. R. Leitinger
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  2. G. Kirchengast
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Correspondence to R. Leitinger.

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Leitinger, R., Kirchengast, G. Inversion of the Plasma Signal in GNSS Occultations — Simulation Studies and Sample Results. Acta Geod. Geoph. Hung 32, 379–394 (1997). https://doi.org/10.1007/BF03325508

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  • DOI: https://doi.org/10.1007/BF03325508

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