[IGSMAIL-7176] IGS WS 2016 Plenary #7 Call for Abstracts; Infrastructure and Antenna Calibration

[Nacho Romero]

Authors: I. Romero, R. Schmid
Subject: Call for abstracts for IGS Workshop Plenary #7

*_Thursday February 11th, Plenary 07:  Infrastructure and Antenna 
Calibration_*

For this plenary session, and the two related poster sessions we welcome 
oral presentations and posters covering issues related to IGS 
infrastructure, and antenna calibration in-line with the descriptions 
below.

*Infrastructure (Nacho Romero)*

The IGS Infrastructure is the backbone of all the IGS services, 
encompassing stations, data formats, data storage, etc. In this session 
we will cover the current state of the IGS infrastructure elements to 
provide an overview of the state of the evolving IGS station network, 
data centers, data formats, station information, etc. Of these important 
elements the handling of station metadata is being addressed to ensure 
that the configuration information of all the participating stations can 
be shared via automated protocols between participating institutions and 
the IGS Central Bureau.  A second essential element in the IGS data 
handling has been incorporating of all Rinex 3 files into the standard 
data repositories at all the data centers. The IGS has also incorporated 
most of the MGEX stations to the regular station network, and we have 
been increasing worldwide station coverage in the IGS by contacting more 
station operators currently outside the IGS.

The IGS Infrastructure is quickly adapting to encompass new satellite 
signals, increasing data types and frequencies, and providing better 
geographical coverage , all of these are very significant areas of interest.

*Antenna Calibration (Ralf Schmid)*

In July 2015, the absolute IGS antenna phase center model was 
complemented with conventional and/or manufacturer-specific satellite 
antenna phase center offset (PCO) values for the new GNSS (Galileo, 
BeiDou, QZSS, IRNSS). For lack of information on the dependence of the 
phase center on the observation direction, the corresponding phase 
center variations (PCVs) were set to zero for the time being. Both PCO 
and PCV values will have to be replaced by estimates from global GNSS 
analyses in the coming years.

Further effort is also needed with respect to the estimation of GPS 
satellite antenna corrections. A combined processing of terrestrial and 
low Earth orbiter data would allow the IGS to provide an independent 
estimate for the terrestrial scale. Azimuth-dependent PCVs should be 
considered at the same time.

Concerning the receiver antennas, the integration of chamber calibration 
values (for the new GNSS) into the IGS model as recommended during the 
last IGS Workshop is still under discussion. Besides, new calibration 
institutions become operational. In order to avoid systematic errors, 
there is a need for careful comparisons of independent calibration 
results. Multipath mitigation or the possible benefit from individual 
antenna calibrations are other open issues.



Please submit your abstract for consideration to the plenary or the 
poster sessions here;

http://igsworkshop2016.org/index.php/abstract-submission/


Abstract Deadline:                       November 25^th

Early bird Registration Deadline:        January 1^st 2016



-- 
Best regards,
Nacho
_______________________________________________________________

Ignacio (Nacho) Romero
Aerospace Engineer, PhD
SAC @ ESA/ESOC/HSO-GN
IGS Infrastructure Committee
www.canaryadvancedsolutions.com
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Gracias por su colaboracion.
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