[IGSMAIL-6742] Call for Participation- Round 2 of NGS Kinematic GPS Processing Challenge

Theresa Damiani - NOAA Federal theresa.damiani at noaa.gov
Tue Mar 5 14:20:06 PST 2013


*All, Please see the invitation below for participants. We look forward to
your responses!*
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>> Call for Participation - Round 2 of NGS Kinematic GPS Processing
Challenge <<

NOAA’s National Geodetic Survey (NGS) is conducting a 12-year project,
called Gravity for the Redefinition of the American Vertical Datum
(GRAV-D), to re-define the vertical datum of the United States by flying
airborne gravity missions.  The accuracy of the resulting vertical datum
depends directly on the quality of the aircraft’s GNSS position solutions.

In August 2010, NGS issued a "Kinematic GPS Challenge" to seek community
input on the best practices for processing this large positioning data
volume. Ten international groups answered the call, submitting sixteen
different position solutions calculated with a variety of software and
techniques.  However, the majority of solutions were corrupted by a
characteristic “sawtooth” pattern which was tracked back to the aircraft
receiver used in the initial Challenge; instead, a second onboard GNSS
receiver is used for this Challenge reissue.  Also in this new call for
participation, inertial measurement unit (IMU) data are made available for
joint GPS+IMU processing.

To further facilitate our software and method development, we invite
interested researchers and practitioners to compute and submit solutions
from samples of actual GRAV-D data. In this new call, NGS requests that all
participants submit a GPS-only solution utilizing the new aircraft GPS
data.  For those able to process with IMU data, we request additional
submission of a second IMU+GPS solution.  NGS would like to receive all
solutions by April 1, 2013.

This is a strictly voluntary exercise for those interested in such a
comparison and we will share our results with the participants. We are also
interested in possibly co-authoring a publication with the participants on
the topic if results are significant.

Detailed information on the Challenge is available here:
* All Files for the Second Call:
ftp://ftp.ngs.noaa.gov/dist/tdiehl/Kinematic_GPS_Processing_Challenge/Call2_Jan2013/
 *
** Descriptions of Challenge and Data are in the ftp documents:
**GRAVD_KinematicGPS_Call2.pdf,
**GRAVD_KinematicGPS_Call2_Supplement1.pdf*
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* Challenge website http://www.ngs.noaa.gov/GRAV-D/gpschallenge.shtml

Please read through the test description (PDF link given above) and
email **Theresa
Damiani (theresa.damiani at noaa.gov) and** Gerry Mader (gerald.l.mader at
noaa.gov) if you plan to participate or if you have any questions. Also,
please feel free to forward this announcement to any person or group who
you think might be interested but might not be on this mailing list. We
look forward to your participation!*
*

Theresa Damiani
**Gerry Mader
**National Geodetic Survey*
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