NDLI: Towards modeling phase center variations for multi-frequency and multi-GNSS

Content Provider	IEEE Xplore Digital Library
Author	Kersten, T. Schön, S.
Copyright Year	2010
Description	Author affiliation: Institut für Erdmessung (ife), Gottfried Wilhelm Leibniz Universität Hannover, Schneiderberg 50, D-30167 Hannover, Germany (Kersten, T.) \|\| Institut für Erdmessung (ife)Gottfried Wilhelm Leibniz Universität Hannover, Schneiderberg 50, D-30167 Hannover, Germany (Schön, S.)
Abstract	With the Hannover concept of absolute field calibration of GNSS antennae the determination of receiver antenna Phase Center Variations (PCV) can be done routinely for the GPS and GLONASS L1 and L2 frequencies, respectively. The need of multi-GNSS and multi-frequency applications — demanded by a broader navigation community — tends to a combined estimation of receiver antenna depending properties for various frequencies and systems. This approach is only advantageous if inter-frequency and inter-system biases are known and continuously considered. In this contribution we investigate steps towards a concept for multi-system-calibration. After a short introduction to the absolute field calibration procedure, the mathematical model as well as adjustment concept will be presented. We show that test results suggest that the receiver demodulation may have an impact on the estimated PCV. The correlation analysis of the multi-frequency multi-GNSS approach underlines that (1) the correct consideration of the mathematical correlations between the parameters to up to 25%, (2) The receiver clock links the results from different frequencies and (3) PCV for different GNSS systems can be computed in a common adjustment since the inter-system correlations are below 1–2%.
Starting Page	1
Ending Page	8
File Size	1472974
Page Count	8
File Format	PDF
ISBN	9781424487400
e-ISBN	9781424487417
DOI	10.1109/NAVITEC.2010.5708040
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-12-08
Publisher Place	Netherlands
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Satellites Receiving antennas Calibration Global Positioning System Clocks
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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