J. Ádám, B. Takács, K. Kratochvilla, P. Zaletnyik,

& Sz. Rózsa – BUTER. Farnworth & S. Soley

- Eurocontrol EECP.B. Ober - Integricom

EGNOS data collection in Budapest

Overview

Eurocontrol

GNSS-1 Operational Validation

The data collection network

Overview of data collection ‘products’

EUROCONTROL

European Organisation for the Safety of Air Navigation

31 members

Mission Requirements To Operational Validation

ETG ‘Mission’ Validation

Civil Aviation(EUROCONTROL,Future Operator)

Land/Maritime(CEU)

ESA

System Validation

EGNOS System Design

& Development

ESA

System Requirements

Civil Aviation(EUROCONTROL)

Land/Maritime(CEU)

European Tri-partite GroupEGNOS Mission Requirements

Eurocontrol Activities

EGNOS/ESTB Data Evaluation Tools Integrity Validation Studies

Conceptual validation Data validation

Flight Trials at various locations Bretigny, Nice, Sion

Static Data Collection ESTB/EGNOS Data Collection Network

Data Collection Network Prepare for EGNOS Operational Validation Gather experience with ESTB/EGNOS

Receivers Tools Results

Learn what anomalies can be identified Compare results from different locations Establish regular monitoring tools Validate Pegasus results

Nodes of the network

Hartebeesthoek

Kourou

IOR PRN131

HöfnTromsö

Hönefoss

Rotterdam

Scilly

Toulouse

MalagaPalma

Canaries

Fucino

Matera

Ankara

ESTB referencestation (RIMS)

EURIDIS referencestation

ESTB processingfacilities (CPF, MCC)

NLES

BarcelonaLisboa

ESTB Data Collection NT

GOV Working Group

Activities

Collect ESTB/EGNOS Data and Evaluate them from different sites in Europe

Group of experts to support: the development of the tools need in the future

EGNOS Operational Validation definition of data collection procedures

Baseline for the future static campaign in the GOV Plan – extended with the ANSP participation

Activities (2) Data collection at regular intervals - full flexibility Regular performance reports - Web site Recommendations for the tools - PEGASUS Deep analysis on specific subjects/anomalies

VPL trend analysis Protection Levels and MT 25 in PEGASUS High fast corrections values, UDREI holes (14/02/03) Ionospheric tests - ESTB corrections monitoring ESTB Performance against losing satellites MIs appearing due to bad ionospheric corrections Multipath analysis…

Why BUTE? Extension of network to the east Broad GNSS experience:

GPS education since 1988/1995

Operating a permanent station since 2000 especially for surveyors

participating in the EUREF IP project

http: //stargate.fgt.bme.hu/indexen.html

Experience with many different receiver brands Trimble

Geotracer

Leica

Novatel

Why Integricom?

Teaming with BUTE Participation in GOV activities

EGNOS Integrity concept EGNOS data-based validation

Specialisation in integrity-related issues Integrity seen as most critical performance

parameter Background in use of GNSS for aviation

Data collection at BUTE

GPS antennas

Dept. of Surveying and Geodesy

The Novatel antenna

Station configurationNovatel Millenium WAAS

receiver

Novatel Pinwheel G-600 antenna

Antenna pole on the chimney

Continuous logging

Multipath assessment

Source of multipath?

MP plot (made by Delft)

Data collection products (1)

‘First glance’ Check observed perfor-

mance against requirement Single site/one day Test fail/pass

Data collection products (2a)

Anomaly investigation Example: integrity

Integrity failures: HPE>HPL

Integrity failures: HPE>HPL

Recent results

Recent results (2)

Data collection products (2b)

Pseudorange correction oscillations broadcast in MT02 and MT03

UDREI<12IODF<3

Pseudorange correction oscillations broadcast in MT02 and MT03

UDREI<12IODF<3

20:40

VPE/VPL

Pref-Res PRN11 PRN16

PRN02

Prefit- residualsPrefit- residuals

Large number of MILarge number of MI

Data collection products (3a)

19:17

STEC

(m

L1

)

Data collection products (3b)

PRN16: P2-P1 (shifted)

PRN16: C1-Rho (shifted)

PRN16: L1-L2 (shifted)

STEC

(m

L1

)

19:17 20:40

PRN16: STEC +/- UIRE (ESTB)

Barcelona,

November 20th,

2003

Data collection products (3c)

22:00

18:00

20:00

LOWMedium

HighVery High

Extreme

October 29-31th November 20-21th

Kp index

from

Oct. 17th

up to

Dec. 1st 2003

Kp index

from

Oct. 17th

up to

Dec. 1st 2003

Concluding remarks

BUTE and Integricom involved in EGNOS data collection and data analysis Eurocontrol GOV activities

Building expertise on EGNOS within a network of 6 European Universities and many ASP-s

Ready to take step to Galileo

??P.B.Ober@Integricom.NLBence@Agt.Bme.HU