Software - Data Pre-Processing
Index:
Contact: UNAVCO pre-processing guru
Last modified: 19 Dec 2005
Teqc toolkit
Teqc is our recommended software for translation
of a wide variety of receiver formats, metadata editing (either during translation to
RINEX or on existing RINEX), time-windowing and epoch decimation editing,
and quality check analysis. Please see the teqc homepage
for more information.
GPSTk
"The goal of the GPSTk project is to provide a world class, open source computing suite
to the satellite navigation community. It is our hope that the GPSTk will empower its
users to perform new research and create new applications." Written and supported by
Applied Research Laboratories (ARL), University of Texas at Austin.
See GPS Toolkit, GPSTk on SourceForge.
Hatanaka compression/decompression
Yuki Hatanaka (hata gsi.go.jp) (GSI)
wrote and maintains rnx2crx and crx2rnx, which allows the user to
compress/decompress a RINEX OBS file into a smaller ASCII format. The Hatanaka-compressed
ASCII format version of a RINEX OBS file is frequently used in conjuction with
the UNIX compress, zip, gzip or other generalized compression utilities
to create a very small file for Internet transfer.
Berne translators & editors
Berne translators and editors are available from the
University of Berne Astronomical Institute (AIUB);
see access to AIUB ftp:
- trrinexo and trrinexn: Trimble download format to RINEX
- asrinexo and asrinexn: Ashtech download format to RINEX
- rgrinexo and rgrinexn: ConanASCII format to RINEX
- ccrinexo and ccrinexn: RINEX OBS and NAV cut/splice editing tools
In addition the following older Berne translators are available from UNAVCO:
JPL translators
The Jet Propulsion Laboratory (JPL) translators
dc, trb, srx, and rx for ConanBinary and TurboBinary are
no longer maintained or supported by JPL. UNAVCO has old versions of some of these
(also not maintained or supported):
- dc:
ConanBinary to JPL Standard format
- trb:
TurboBinary normal-rate to JPL Standard format
- srx:
JPL Standard format to RINEX
Ashtech translators
The following translator, convert, is available through UNAVCO with agreement with Ashtech.
Convert is a DOS executable, developed by Ashtech circa 1993, to translate
pre-"version 3" B-files into "version 3" B-files. It may not work on
all early B-files. This software is not currently supported by Ashtech,
and neither Ashtech nor UNAVCO assume any responsibility for its use.
In other words: "User beware! (or Caveat emptor, even though you
aren't buying it). It has been successful, however, in translating pre-"version 3"
B-files to version 3 B-files, which can then be read by teqc.
- convert:
Ashtech pre-"version 3" B-file to "version 3" B-file
Garmin translator
Antonio Galán (ant fi.upm.es) (Facultad de Informática)
wrote and maintains experimental code that has been used to convert Garmin binary format
to RINEX. We are providing a link to Prof. Galán's Web page as a service to
the community; please send feedback to Prof. Galán directly.
clockprep
Jeff Freymueller (jeff.freymueller gi.alaska.edu) (Univ. of Alaska Fairbanks)
wrote and maintains clockprep, which is used to convert RINEX OBS file in receiver time
(millisecond receiver clock resets in time tag, smooth phase and pseudorange) into the other flavor of RINEX
in GPS time (smooth time tag, but millisecond jumps now in phase and pseudorange) so that the data can be processed with GIPSY.
Note: Having RINEX with smooth time tag is a required step for GIPSY users, but the resulting
RINEX should also be able to be used in other processing software.
- clockprep
source and executables for Solaris Sparc and Linux x86
cc2noncc
Jim Ray (jimr ngs.noaa.gov) (NGS/NOAA)
wrote and maintains cc2noncc, which is used to convert the pseudoranges in a RINEX OBS file
from a receiver using cross-correlation technique (e.g., the AOA TurboRogue receivers) to pseudoranges
compatible with the modern Y-codeless pseudorange tracking used in such receivers as Ashtech, AOA Benchmark,
AOA SNR-12 ACT, etc.
- cc2nonccFortran source and bias history
- p1c1.f: AIUB's current CODE 30-day DCB for GPS SVs
cf2ps
Steve Hilla (steve.hilla noaa.gov) (NGS/NOAA)
wrote cf2ps for Windows systems, which allows the user to graphically view
the COMPACT plot files created by teqc (and the original UNAVCO QC program).
To use cf2ps you must also install Generic Mapping Tools (GMT),
developed and maintained by
Pål (Paul) Wessel (pwessel hawaii.edu) (SOEST/Univ. of Hawai'i at Manoa)
and Walter Smith (walter raptor.grdl.noaa.gov) (LSA/NOAA).
qcview and qcview32
Jim Johnson (jjohnson ucar.edu) (GST/UCAR)
wrote qcview and qcview32, which allows the user to graphically view
the COMPACT plot files created by teqc (and the original UNAVCO QC program)
on Windows systems, either in DOS or DOS emulation.
gt ("graphical tool")
Jim Johnson (jjohnson ucar.edu) (GST/UCAR)
wrote gt ("graphical tool"), which allows the user to graphically view
the COMPACT plot files created by teqc (and the original UNAVCO QC program).
GPS Toolbox
Steve Hilla (steve.hilla noaa.gov) (NGS/NOAA)
and Mike Craymer (GSC/NRCAN) maintain the contributed software for the
GPS Solutions' GPS Toolbox, column which has all sorts
of other useful stuff!
QC2SKY
Marco Roggero (roggero atlantic.polito.it)
(II Facoltà di Ingegneria del Politecnico di Torino) developed and maintains QC2SKY software which
can be used to graphically display the qc plot files from teqc in azimuth/elevation sky plots.
Last modified Tuesday, 17-Apr-2007 09:24:20 MDT
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