Summary of the November 2nd 2000 Meeting of the
GEOIDE Project 14
Réunion du Projet GEOIDE ENV#14
tenue le 2 novembre 2000 chez Viasat à Montréal
Meeting of the GEOIDE Project ENV#14
hold on November 2nd 2000 at Viasat in Montreal
9:00 Mots de bienvenue / Welcome
People present at the meeting :
CRG-UL : Rock Santerre,
Brian Morse, Jianjun Zhu, Annie Biron
UNB : Richard Langley, Donghyun Kim
GSD : Pierre Tétreault
Viasat : Denis Parrot, Claude St-Pierre
9:05 Résumé des activités de
recherche depuis mai 2000/
Summary of research activities
since May 2000
Dr. Kim has continued his work on
an optimised least-squares ambiguity search technique and on the improvement of reliable
and robust OTF solutions. He presented a chart summarising his research axes. His main
targets are related to computational efficiency, increasing the success rate of the
ambiguity resolution, and quality control. He had visited Viasat during the summer to get
acquainted with the problems encountered in every day life. Lately his interests have been
cycle slips and multipath detection in kinematic mode with multiple reference stations.
Dr. Langley reported the activity
of one of his Ph.D. students, S. Bisnath, on reliable cycle slips detection and repairs.
Sunil Bisnath joined the Project ENV#14 team last summer.
Dr. Zhu a postdoctoral fellow
arrived at the CRG, last July. He took over Dr. Mami Uenos works. He presented
preliminary results obtained with his proposed approach which uses a priori height,
obtained from the tide gauges, as pseudo observation into GPS data processing, rather than
as a comparison for the solution (height from GPS-OTF).
Annie Biron has completed the
development of her software for the L1 carrier phase data processing in rapid-static mode
for GPS, GLONASS, and GPS+GLONASS solutions. She has used Tienstra least-squares
adjustment in the process of instantaneous positioning with fixed ambiguities. Data set
has been tested and analysis has been done. She has spent 2 weeks at UNB during August to
familiarise with the works being done at UNB and to experience Javad GPS/GLONASS receivers
and software. She has been writing her M.Sc. thesis which could be completed by the end of
Brian Morse, a professor of Civil
Engineering and associate member of the CRG at Laval University, joined the team last
June. He has presented his research background in hydrodynamics and his interests in the
Project ENV#14. Dr. Morses interests are related to ship under keel clearance for
secure maritime navigation. Field tests (not paid by GEOIDE) are being made this Fall, for
the St. Lawrence Seaway, and data sets will be available to the Project ENV#14 research
Pierre Tétreault reported that the
GSD is calculating Ultra Rapid Orbits available 3 hours after the data has been collected
(contribution to IGS). These orbits are uploaded twice a day for IGS.
Claude St-Pierre has presented the
algorithm of Viasats GPS software suite. He has tried to implement the works done by
Dr. Kim on cycle slips detection using quadruple and quintuple phase differences.
Collaborative works between Viasat and UNB have to be further done to complete this
CHS and CCG
New GPS-OTF real-time tests will be
made on November with DSNP equipments on the St-Lawrence River. The raw data sets and DSNP
results will be available to the Project ENV#14 for further testing.
11:45 - 12:00 Évaluation
intérimaire du projet ENV#14 / Interim Evaluation of the Project ENV#14
The Research Management Committee
required an interim progress report to the Project ENV#14. The report was due to August 15th.
Rock Santerre presented to the Team the letter by K. Thomson (GEOIDE Scientific Leader)
summarising the evaluation of the project ENV#14 by the RMC. Overall the evaluation was
quite positive. Minor points will be addressed into the Second Annual Progress report due
to November 15th. Additional funding of 25,000$ from DFO has been supplied to
support the new research initiative that will be performed by Dr. Morse.
12:00 - 14:00 Dîner / Lunch
14:00 15:00 Planification
des futures activités de recherche / Planning of future research activities
D. Parrot has requested a schedule
chart showing the activities of all the participants for the second half of the project.
He reminded all members of the project that research activities should be more oriented on
practical aspects and that the algorithms and pieces of software which prove to be
efficient should be implemented, later on, into existing software for future
Dr. Kim will continue his works, as
reported previously, but keeping in minds Viasats preoccupation. He will closely
collaborate with Viasat, to concretely implement his algorithms into existing
Viasats software. Related to Dr. Kims works, one refereed paper has been
accepted and another one is in preparation.
Dr. Zhu will finish his work on a
priori height as quasi observations, during the next few weeks, in collaboration with C.
St-Pierre from Viasat. Suggestion has been made by Viasat, that his future works include
the improvement of the reliability of GPS float solution.
Annie Biron will finish her M.Sc.
thesis by the end of November. A paper will be published on GPS-Glonass.
Dr. Brian Morse, will start to
analyse the phenomena of squat and under keel clearance form the GPS field data sets
collected this Fall. A graduate student (or a research assistant) will be hired to assist
Dr. Morse. A full description of his research axis, part of the Project ENV#14, will be
prepared and included in the Second Annual Progress Report.
Dr. Santerre reminded the members
that a Second Annual Project Report is due for the 15th of November.
15:00 15:15 Fonds spéciaux
GEOIDE / GEOIDE Special Funds
R. Santerre informed the team
members of the different GEOIDE Special Funds related to education and training as well as
on the GEOIDE Market Development Fund. For the latter, Sylvain Poirier from the GEOIDE
Office will communicate with D. Parrot from Viasat.
15:15 15:45 Lettre
dintention / Letter of Intent (GEOIDE Phase 2)
A new GPS/GALILEO project involving
the 4 universities active in GPS (Laval, UNB, Ryerson, and Calgary) and several industries
and government agencies was discussed by the members of this project.
There was also mention of another
new GEOIDE Maritime project (involving CHS and CCG) which could lead by Brian Morse along
with possible collaboration with the UNB Ocean Mapping Group.
15:45 - 16:00 Prochaines réunions
/ Next meetings
The next project meeting is
scheduled during the week of 5-10 March 2001, to be held at the Geodetic Survey Division
Office, in Ottawa. The date will be announced later. Another meeting is also planned
during the Third Annual GEOIDE Meeting to be hold in Fredericton, next June. The Second
Annual GPS Round Table Meeting will also be held at that time.
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