ESTB in Maritime, Air and Land application s. Jarosław Cydejko, Marek Grzegorzewski, Stanis ł aw Oszczak , Adam Ciećko. EGNOS WORKSHOP , 24 September 2004 , Kraków. The maritime experiments verifying the ESTB performance in Poland: Maritime Academy in Gdynia Maritime Office in Gdynia
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Jarosław Cydejko, Marek Grzegorzewski, Stanisław Oszczak, Adam Ciećko
EGNOS WORKSHOP, 24 September 2004, Kraków
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 nominalcoverage.
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 Gdańsk Bay within traffic separation scheme established on the approach waters to Gdynia and Gdańsk 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;
with WAAS/EGNOS option
ESTB „mode 0” – ionocorrections included
First Phase: GDYNIA, July 2001
ESTB „mode 0” – ionocorrections included
EGNOS (two different locations), GPS
Second Phase: GDYNIA, DZIWNÓW - April 2002
The Survey Vessel „TUCANA”
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.
Test area in Gdańsk Bay
Difference between OTF and EGNOS (ESTB) positioning – Javad Legacy E
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).
Location of the test area and predicted Horizontal Navigation System Error - HNSE(95%) of EGNOS System Test Bed (for 10 reference stations network).
Experiment in Trieste.
Olsztyn.Coordinates differences between OTF phase positioningand ESTB Magellan positioning
Kosice. Coordinates differences between OTF phase positioningand ESTB Magellan positioning
Trieste.Coordinates differences between OTF phase positioningand ESTB Magellan positioning
Trieste.Coordinates differences between OTF phase positioningand ESTB NovAtel positioning
GPS/EGNOS POSITIONING OF ARCHEOLOGICAL SITE IN POMPEII– July 2003
EGNOS – ESTB positioning used for parcel measuremets – On the Spot checks – Equipment Testing Phase
GPS receivers subject to on-the-spot tests
EGNOS – ESTB positioning used for parcel measuremets – 2004 campaign (July-August 2004) – SATCON
EGNOS correction availability disruption
EGNOS – ESTB positioning used for parcel measuremets – 2004 campaign (22 July 2004) – THALES Mobile Mapper
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.
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.