2024-03-28T19:01:17Zhttp://doidb.wdc-terra.org/oaip/oaioai:doidb.wdc-terra.org:62022023-06-05T11:49:14ZDOIDBDOIDB.GFZ
doi:10.5880/GFZ.2016.1.1.002
eng
GFZ German Research Center for Geosciences
http://www.gfz-potsdam.de/
information
pointOfContact
2016-06-14
Ground-based GPS observations at low elevation angles using open-loop signal tracking
2016-06-14
revision
Beyerle, Georg
GFZ German Research Centre for Geosciences
author
This data publication comprises (1) a one-year data set of ground-based GPS raw signal observations (inphase and quadphase C/A code correlation sums, NCO phases, pseudoranges) aiming at geometric elevation angles below +2°, (2) the "OpenGPS" receiver software and (3) MATLAB source code to access the raw data files.
(1) ground-based GPS raw signal observations:
Within the "GLESER" measurement campaign 2581 validated setting events were recorded by the "OpenGPS" open-loop tracking receiver at an observation site located at 52.3808°N, 13.0642°E (Potsdam, Germany) between January and December 2014. The instrument provided on average 8.3 observations per day with three data gaps (29 January to 1 February, 29–31 August and 18–22 December 2014) caused by hardware or software problems, operator errors or other technical reasons. Between 15 July and 6 September the "OpenGPS" receiver malfunctioned due to an operator error and 437 observations from that time period are removed from the data set leaving 2581 low-elevation events.
Raw data files are stored in compressed tar archives each covering one week of observations. For more information see document "readme-gleser-dataset.pdf".
(2) "OpenGPS" receiver software:
The compressed tar archive "gleser-OpenGPS-src.tar.gz" includes (C code) sources of the OpenGPS receiver hardware. The receiver software is designed for "OpenSourceGPS"-compatible hardware (Kelley, 2002) and Linux operating system. During the 2014 campaign kernel version 2.6.32 (OpenSUSE version 11.3) with real-time extension module RTAI (RealTime Application Interface for Linux) version 3.8.1 was used. For more information see the document "readme-gleser-OpenGPS.pdf".
(3) MATLAB source code:
The compressed tar archive "gleser-readdata-src.tar.gz" contains a MATLAB function file that may be used to access the raw data files. For more information see the document "readme-gleser-readdata.pdf".
Complete
Beyerle, Georg
GFZ German Research Centre for Geosciences
gbeyerle@gfz-potsdam.de
http://www.gfz-potsdam.de/en/staff/georg-beyerle/
information
pointOfContact
global navigation satellite system (GNSS)
global positioning system (GPS)
open-loop signal tracking
atmospheric refractivity
ground-based obervation
propagation process
GEMET - INSPIRE themes, version 1.0
2008-06-01
publication
EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PHENOMENA
NASA/GCMD Earth Science Keywords
2008-02-05
revision
Olsen, L.M., G. Major, K. Shein, J. Scialdone, R. Vogel, S. Leicester, H. Weir, S. Ritz, T. Stevens, M. Meaux, C.Solomon, R. Bilodeau, M. Holland, T. Northcutt, R. A. Restrepo, 2007 . NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 6.0.0.0.0
CC0 Universal 1.0
CC0 Universal 1.0
eng
Observation platform at building A31, Telegrafenberg, Potsdam, Germany
13.0641
13.0641
52.3808
52.3808
2014-01-01
2014-12-31