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A Method for the Ionospheric Delay Estimation and Interpolation in a Local GPS Network

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Abstract

To estimate ionospheric delays from the Global Positioning System (GPS) measurements, satellite and receiver equipment biases have to be modeled. This paper presents a procedure based on the least squares (LS) approach, which implicitly takes into account these equipment biases in the estimation of the ionospheric effect. The second part of this work deals with the interpolation of the ionospheric correction from a permanent GPS network to a single frequency GPS user. The results obtained show that for 10-cm position accuracy the ionospheric delay can be successfully interpolated when the GPS user is within 40 km of the GPS permanent network.

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Authors and Affiliations

  1. Dept. Ingeniería Cartográfica, Geodésica y Fotogrametría, Universidad de Jaén, Jaén, Spain mclacy@ujaen.es

    M.C. de Lacy

  2. Facoltà di Ingegneria di Como, Politecnico di Milano, Como, Italy fernando.sanso@polimi.it

    F. Sansò

  3. Dept. Ingeniería Cartográfica, Geodésica y Fotogrametría, Universidad de Jaén, Jaén, Spain

    A.J. Gil

  4. Sec. Dptal. Astrononomía y Geodesia, Facultad de CC. Matemáticas, Universidad Complutense de Madrid, Madrid, Spain grc@mat.ucm.es

    G. Rodríguez-Caderot

Authors
  1. M.C. de Lacy
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  2. F. Sansò
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  3. A.J. Gil
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  4. G. Rodríguez-Caderot
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de Lacy, M., Sansò, F., Gil, A. et al. A Method for the Ionospheric Delay Estimation and Interpolation in a Local GPS Network. Stud Geophys Geod 49, 63–84 (2005). https://doi.org/10.1007/s11200-005-1626-4

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  • DOI: https://doi.org/10.1007/s11200-005-1626-4

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