Practical Results of Interferometric Processing

des Instituts für Geodäsie

Heft 20-1/1985

Practical Results of Interferometric Processing
of NNSS Doppler Observations

Szabolcs MIHÁLY / Tibor BORZA / István FEJES
Satellite Geodetic Observatory, Budapest / Hungary


In: WELSCH, Walter M. / LAPINE, Lewis A. (Hrsg.) [1985]:
International Federation of Surveyors - FIG -
Proceedings Inertial, Doppler and GPS Measurements for National and Engineering Surveys
Joint Meeting of Study Groups 5B and 5C, July 1-3, 1985

Schriftenreihe Universitärer Studiengang Vermessungswesen, Universität der Bundeswehr München, Heft 20-1, Neubiberg, S. 163-176.


An interferometric approach has been proposed earlier to process Doppler observations of NNSS satellites. To check this approach test network measurements have been carried out on baselines of different lenghts and processed by conventional and interferometric methods. The paper gives a short description of the mathematical model and two versions of software developments. The two sets of results have been compared to each other: the distance derived from 4-10 passes agree with distance obtained conventionally from 50 passes within 2-18 cm. Based on 4-10 passes /8-24 hours of observations/ a 10 cm repeatebility of interferometric distances has been reliably demonstrated on a N-S oriented 180 km baseline.

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