The use of signal strength measurements for quality assessments of GPS observations

• Autorzy: Kirchner M. , Becker M.
• Konferencja: Geodynamic and Geodetic Programmes of the CEI (9; Symposium; 25-30.-4.2005; Vienna, Austria)
• Języki publikacji: EN

Abstrakty

EN

Multipath interferences are one of the main GPS error sources nowadays. The additional observation type of signal-to-noise ratio provides appropriate information to identify areas with degraded data quality due to multipath reflections. After a short introduction to signal-to-noise ratio is related to the phase tracking error of the original phase measurements and derived linear combinations. This relation can be used to support the idividual weighting of the observations in the processing. A promising weighting strategy is presented and the positive impact to the processing is evaluated. The impact of the presented theory is shown on several real datasets.

Słowa kluczowe

EN

signal strength measurement; quality assessment; GPS observations

PL

pomiar natężenia sygnału; ocena jakości; obserwacje GPS

• Wydawca: Wydział Geodezji i Kartografii Politechniki Warszawskiej
• Czasopismo: Reports on Geodesy
• Rocznik: 2005
• Tom: z. 2/73
• Strony: 245--253
• Opis fizyczny: Bibliogr. 6 poz., rys., wykr.

Twórcy

autor

Kirchner M.

• Institute of Physical Geodesy, Darmstadt University of Technology, Petersenstr. 13 D-64287 Darmstadt, Germany

autor

Becker M.

• Institute of Physical Geodesy, Darmstadt University of Technology, Petersenstr. 13 D-64287 Darmstadt, Germany

Bibliografia

• Butsch, F., Kipka, A. (2004): Die Bedeutung des Signal- zu Rauschleistungsveräaltnisses und verwandter Parameter für die Messgenauigkeit bei GPS. Allgemeine Vermessungs-Nachrichten, Vol. 111, No 2, pp. 46-55.
• EPN (2005): EUREF Permanent Network - Homepage. http://www.epncb.oma.be/ (last access May 12, 2005.
• Hugentobler, U., Dach, R., Fridez, P. (Eds., 2005): Bernese GPS Software Version 5.0 Draft. Astronomical Institute University of Bern.
• Kirchner, M. (2005a): The Use of Signal Strength Measurements for Quality Assessment and Multipath Evaluation of GPS Observations. Poster, EGU General Assembly Vienna, Austria. 24-29 April 2005.
• Kirchner, M . (2005b): Signal-Strength-Variation on EPN and CEGRN GPS Stations.Poster, EGU General Assembly Vienna, Austria, 24-29 April 2005.
• Kirchner, M., Zeimetz, P., Becker, M. (2005): Results of Antenna Gain Calibration and Comparisons with Real GPS-Observations. Poster, EGU General Assembly Vienna, Austria, 24-29 April 2005.