ESTB in Maritime, Air and Land applications

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ESTB in Maritime, Air and Land applications

• Jaroslaw Cydejko, Marek Grzegorzewski, Stanislaw
  Oszczak, Adam Ciecko

EGNOS WORKSHOP, 24 September 2004, Kraków
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• The maritime experiments verifying the ESTB
  performance in Poland
• Maritime Academy in Gdynia
• Maritime Office in Gdynia
• July 2001 first tests in Gdynia - focused on
  the comparision of ESTB performance with other
  GPS-based methods of satellite positioning, such
  as maritime DGPS and standalone GPS
• April 2002 tests in Gdynia (East Coast) and
  Dziwnów (West Coast) focused on the comparison
  of ESTB performances observed in different
  locations on the edge of system nominal coverage.
  
• NB Tests in static conditions The receivers
  antennas located in known positions
• Simultaneous observations for different
  systems, modes and locations
• August 2003 maritime tests conducted at sea, in
  the area of Gdansk Bay within traffic separation
  scheme established on the approach waters to
  Gdynia and Gdansk Harbours.
• NB Tests in dynamic conditions, on vessel
  navigating at sea
• The ESTB position estimations refered to
  simultaneous RTK GPS observations
• Simultaneous observations for different
  systems and modes

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Equipment TOPCON Legacy- E with WAAS/EGNOS
option
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Position scatter plots all day measurements,
ESTB mode 0 ionocorrections included

• FIRST PHASE
• July 2001
• all data collected in
• Gdynia
• 10 RIMS
• EGNOS, GPS
• DGPS (Rozewie)

 
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Horizontal Standard Deviation EGNOS, GPS,
DGPS First Phase GDYNIA, July 2001
 
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Position scatter plots all day measurements,
ESTB mode 0 ionocorrections included

• SECOND PHASE
• April 2002
• data collected in
• Gdynia Dziwnów
• 10 RIMS
• EGNOS, GPS

 
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Horizontal Standard Deviation EGNOS (two
different locations), GPS Second Phase GDYNIA,
DZIWNÓW - April 2002
 
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Average positions EGNOS, GPS, DGPS vs. reference
point
July 2001
April 2002
 
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Maritime Tests (August 2003) The Survey Vessel
TUCANA
Equipment Setup      TOPCON Legacy-E (1)
GPS L1 differential GPS using the ESTB signal
       TOPCON Legacy-E (2) GPS L1 -
non-differential GPS standalone      Leica
MX 9212 GPS L1 maritime DGPS (Rozewie),
   Trimble 4700 Total Station L1/L2 GPS RTK
receiver.
 
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Maritime Tests (August 2003) Test area in Gdansk
Bay
 
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Results (1)
 
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Results (2)
 
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Air navigation experiments

• Air Force Academy in Deblin
• TS 11 Iskra jet plane
• June 2003 BRDA experimet
• November 2003 ODRA experimet
• Equipment used in the experimental flights
• Ashtech Z-Surveyor (on-board)
• Garmin GPS Map 76S with EGNOS option,
• Javad Legacy with EGNOS option,
• Ashtech Z-Surveyor and Ashtech Z-XII (5 reference
  stations)
• Recording interval
• 1 sec Ashtech
• 2 sec Garmin
• 1 sec Javad

 
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Example of jet plane trajectory
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Antennae mounting
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TS 11 Iskra
GPS antennae
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Difference between OTF and EGNOS (ESTB)
positioning - Garmin
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Difference between OTF and EGNOS (ESTB)
positioning - Garmin
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Difference between OTF and EGNOS (ESTB)
positioning Javad Legacy E
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Comparison of flight tests results
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Land navigation tests performed in Central
European Countries in 2002 The main goal of
performed trials was the use ESTB signal in
satellite based navigation. The authors of the
report carried out three experiments across the
Central European Countries aiming at data
collection during car navigation. The tests were
performed in August September 2002. North-East
Poland, East Slovakia and North-East Italy were
chosen as test areas. With current allocation of
RIMS, the area of Poland and Slovakia is on the
eastern edge of the predicted ESTB coverage
(Figure 1).
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Location of the test area and predicted
Horizontal Navigation System Error - HNSE(95) of
EGNOS System Test Bed (for 10 reference stations
network).
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• GNSS receivers used in the experiments
• 2 Ashtech Z-XII geodetic receivers (used for
  calculation of the OTF car trajectory with one
  second interval)
• 2 NovAtel geodetic receivers with EGNOS option of
  University of Trieste
• Magellan Meridian Platinum handheld - the top
  model of popular Meridian Series, equipped with
  EGNOS option.

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Experiment in Olsztyn.
Experiment in Trieste.
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Olsztyn. Coordinates differences between OTF
phase positioning and ESTB Magellan positioning
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Kosice. Coordinates differences between OTF phase
positioning and ESTB Magellan positioning
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Trieste. Coordinates differences between OTF
phase positioning and ESTB Magellan positioning
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Trieste. Coordinates differences between OTF
phase positioning and ESTB NovAtel positioning
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GPS/EGNOS POSITIONING OF ARCHEOLOGICAL SITE IN
POMPEII July 2003
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GPS/EGNOS POSITIONING OF ARCHEOLOGICAL SITE IN
POMPEII July 2003
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GPS/EGNOS POSITIONING OF ARCHEOLOGICAL SITE IN
POMPEII July 2003
50 m
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EGNOS ESTB positioning used for parcel
measuremets On the Spot checks Equipment
Testing Phase
50 m
GPS receivers subject to on-the-spot tests
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EGNOS ESTB positioning used for parcel
measuremets 2004 campaign (July-August 2004)
SATCON
50 m
EGNOS correction availability disruption
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EGNOS ESTB positioning used for parcel
measuremets 2004 campaign (22 July 2004)
THALES Mobile Mapper
25m
50 m
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Conclusions The performed tests show that GPS
positioning with the use of ESTB correction gives
very promising results. Even better than
expected. The horizontal positioning of moving
vehicles with errors around 1-2 meters would be
satisfactory for the majority of users of the
satellite navigation systems.
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Conclusions Slightly lower accuracy was achieved
for vertical coordinate. However the average
error of around 3-4 meters without fully
operating EGNOS system gives good prognoses for
the future. Some disruptions of ESTB
performance were observed giving false results of
positioning, therfore Full Operational Capability
(FOC) status of the EGNOS system is essential for
user. Untill this time ESTB should be used with
care.
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Thank you for your attention