swisstopo lpt report 2006 2007
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swisstopo (LPT) Report 2006/2007. E. Brockmann. EUREF – EUMETNET MoU. Signed at EUREF06 in London Good bases for further collaboration between E-GVAP and EUREF. Monitoring NRT solutions. Only graphical adaptations to new corporate design New internet system planned till end of the year.

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Presentation Transcript
euref eumetnet mou
EUREF – EUMETNET MoU
  • Signed at EUREF06 in London
  • Good bases for further collaboration between E-GVAP and EUREF
monitoring nrt solutions
Monitoring NRT solutions
  • Only graphical adaptations to new corporate design
  • New internet system planned till end of the year
processing
Processing
  • Bernese Software 5.0 (+)
  • ~ same number of stations
  • Absolute antenna model since GPS week 1401 (Nov. 2006)
  • GNSS PP analyses (GLONASS ambiguities float) since week 1401
  • GNSS enhancement of AGNES in June/July 2007: 2/3 of the stations with GNSS receivers equipped
  • GNSS NRT analyses(GLONASS ambiguities fixed) since 2 weeks
station paye first gnss update
Station PAYE (first GNSS update)

Stefan Schaer Daniel Ineichen Elmar Brockmann

June 14, 2007

optimised baseline selection strategy
Optimised baseline selection strategy

MAX-OBS-> MAX-OBS / SHORTEST / GNSS Baselines

(not yet included: Receiver Type)

slide7

GPS

Aug 2007

DOY 2007

slide8

GPS + GLONASS

Aug 2007

DOY 2007

slide9

GPS + GLONASS

Aug 2007

DOY 2007

validation postprocessing nrt rrt
Validation Postprocessing – NRT – RRT

Reference: PP Rel.-Cal.

PP Abs.-Cal. + GNSS

NRT Abs.-Cal.

GNSS

epn tropo combination
EPN Tropo combination

Refined processing options.

summary
Summary
  • Absolute antenna phase center model used since GPSWeek 1400 (Nov. 2006) for NRT and PP. Influence is 4-12 mm dependent of antenna type on the station
  • GNSS processing (ambiguity float) introduced in postprocessed solutions since GPSWeek 1401. The influence on ZTD is very small.
  • 2/3 of the AGNES sites with GNSS receivers
  • New baseline strategy (shorter baselines) is a prerequisite for GNSS ambiguity resolution.
  • GNSS ambiguity fixed solutions since 2 weeks. Influence on NRT need to be validated.
action items
Action Items
  • Installation of remaining 10 AGNES sites: GPS -> GNSS (double station concept)
  • Ambiguity resolution GNSS for longer baselines and for mixed receivers including proper inter-phase bias handling (-> hope to realize improvements for NRT ZTD + GNSS-tomography)
  • More “Super Sites” in LPT processing
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