© deimos engenharia and encore consortium, all rights reserved encore enhanced code galileo...
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© DEIMOS Engenharia and ENCORE consortium, All Rights Reserved
ENCOREENCOREENENhanced hanced COCOde Galileo de Galileo REREceiverceiverfor land management in Brazilfor land management in Brazil
Ignacio TournéIgnacio TournéEuropean GNSS Applications In H2020
4 February 2014, Prague
<Conference Name and Session> © <Company Name>, All Rights Reserved
• Deimos Engenharia is the Portuguese branch of ELECNOR-
Deimos, a space company with 35 M€ annual turnover and more
than 300 engineers
• Relevant Contribution to the majority of ESA Programmes
Company presentation
2
• Areas of activity:
• Mission analysis
• GNSS syst and apps
• On board software
• Ground segment
• Design, integrate and operate EO
satellites: Deimos-1 and 2
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
ENCORE in brief:
• Taking benefit of the new Galileo ranging signals, ENCORE project developed a low-cost
Land Management Application to cover Brazilian needs in terms of geo-referencing and
cadastre planning.
• Seventh Framework Programme (FP7/2007-2013) under the GNSS Supervisory
Authority grant agreement FP7-GALILEO-2008-GSA-1 Proj. 247939
– Started in February 2010
– Final Review in June 2012
• The ENCORE project lead by DEIMOS Engenharia (Portugal) in partnership with:
Institute of Geomatics, DEIMOS Space (Spain), University of Nottingham (UK),
Universidade Estadual Paulista (Brazil), Orbisat da Amazônia Indústria e
Aerolevantamento (Brazil), Santiago & Cintra Importação e Exportaçao Ltda
(Brazil) and Editora Mundo GEO ltda (Brazil).
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
4
ENCORE
WP 1000 DME WP 2000 S&C WP 3000 DME WP 4000 S&C WP 5000 GEO WP 6000 DME
WP 2100 S&C WP 3100 UNESP WP 4100 S&C WP 5100 GEO
WP 2200 S&C WP 3200 DME WP 4200 S&C WP 5200 GEO
WP 3300 DMS WP 4300 S&C WP 5300 GEO
WP 3400 DME WP 4400 UNESP WP 5400 UNESP
WP 3500 UNOTT
Market Analysis and Sizing
Supplying Infrastructure
ManagementAnalysis of
Regional Context
State-of-the-art Analysis
Application Development
Academic & Institutional
dissemination
Coordination and Suppot to EC/GSA
Dissemination and Awareness
Project web page
General public and GNSS community
Potential user communities
Business Potential Demonstration
Exploitation and Business Plan
Market Penetration and Galileo introduction
Legal, Regulatory & Standarisation
Aspects
On-field land management demonstration
Validation and Testing
Implementation
Design
Requirements Analysis
ENCORE Work Breakdown Structure
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
Presentation Outline
•Introduction and Motivation
•System Overview and Innovation
•Results
•Conclusions
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
• ENCORE Project objectives:– Introduction of Galileo terminals in the Brazilian market for land
management applications (geo-referencing and cadastre), with possible future expansion to other countries and related applications
– Stimulating the participation of international entities from Brazil
– Development of a high-precision and low-cost land management application based on Galileo signals
Introduction and MotivationIntroduction and Motivation
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
Introduction and MotivationIntroduction and Motivation
• Land Management in Brazil
– The Brazilian market lacks information mainly in terms of geo-
referencing of rural real estates (10.267/2001 Federal Law)
– There is an increasing demand for topographical surveys of
rural areas
– Commercially available professional GPS receivers are limited
and expensive. The development of solutions tailored to the
Brazilian case is required and the technology involving Galileo
receivers is shown to be adequate to this purpose.
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
• Brazilian Technical Norm Position accuracy
– Rural properties require horizontal position error < 0,5m and
vertical < 1,5m
Introduction and MotivationIntroduction and Motivation
Positioning Solution Horizontal Accuracy
(1 )C1 – Basic Support / Geo-referencing ≤ 0,10 mC2 - Immediate Support/ Geo-referencing ≤ 0,20 mC4 - Geo-referencing ≤ 0,50 mC5 - Geo-referencing for natural limits (e.g. river)
≤ 2,00 m
C7 - Geo-referencing for restricted points (e.g. dense vegetation)
Method dependent
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
Introduction and MotivationIntroduction and Motivation
• Other potential applications
– Urban property registration
– Mapping of urban infrastructure (e.g. basic sanitation,
communications) for Geographic Information Systems (GIS)
– Applications supporting the planning and decision-making in
urban environment
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
• Introduction and Motivation
• System Overview and Innovation
• Results
– Base-band processing
– Positioning
• Conclusions
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
Architecture Overview
System Overview and Innovation
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
Receiver Prototype
System Overview and Innovation
Test Workstation
Host Computer
RF Front-endAntenna cable
Host Computer
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
Application SW
System Overview and Innovation
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
• Innovation in the project
– Use Galileo Pseudorange Observables from Galileo
• E5 AltBOC and E1 CBOC for low tracking & multipath errors;
– Fill the gap for land management applications using Galileo
• Intermediate accuracies between Professional (cm) and Mass
market (meter) receivers, with lower complexity & cost.
Accuracy Complexity PriceMASS-MARKET
RECEIVERS
Pseudorange basedLow (m) Low Low
PROFESSIONAL RECEIVERS
Carrier phase basedVery High (cm) High High
ENCORE High (few dm) Low - Medium Medium
System Overview and Innovation
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
• Positioning Strategy is inspired on Precise Point Positioning
• Although the receiver is a dual frequency, the positioning algorithm
is not based on iono-free combination (E1 is too noisy);
• Use E5 AltBOC code observables (centimeter errors) with:– Specific models to consider ionospheric variaton & receiver biases– Satellite orbits & clocks from IGS and tropo from INPE
• Real Time (RT) and Post Process (PP) position determination
GNSS Positioning
Phase Code
1 frequency receiver 2 frequency receiver
Differential Absolute
Real-Time Post-ProcessingReal-Time Post-Processing
System Overview and Innovation
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
Presentation Outline
•Introduction and Motivation
•System Overview and Innovation
•Results
•Conclusions
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
Results
• Tracking Results (1/2) : Test setup
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
• Tracking Results (2/2) : Accuracy
– Overall agreement of theoretical and measured data
• E1 code tracking error typically below 20 cm (>44dBHz)
• E5 code tracking error typically below 1.5 cm (>47dBHz)
40 45 50 550
5
10
15
20
25
30
C/N0 [dB.Hz]
code
pha
se e
rror
[cm
]
theoretical
measured
40 45 50 550
0.5
1
1.5
2
2.5
C/N0 [dB.Hz]
code
pha
se e
rror
[cm
]
theoretical
measured
E5 AltBOCE1 CBOC
Results
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
19
Results
• Positioning results
– Results of the combination of E1 CBOC / E5 AltBOC indicate cm-level
[horizontal] to dm-level [vertical] positioning capability in open areas.
– Results of the combination of E1 CBOC / E5 AltBOC indicate low dm-level
[horizontal] to dm-level [vertical] positioning capability in moderate
tree covered areas.
– Results indicate ENCORE can be used for surveying
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
Presentation Outline
•Introduction and Motivation
•System Overview and Innovation
•Results
•Conclusions
European GNSS Applications In H2020 4 February 2014, Prague © DEIMOS Engenharia, All Rights Reserved
• ENCORE project explores Galileo potential for surveying:
– Developed an application within the Brazilian context:
• Prototype of receiver: RF (ICs) and DSP (FGPA) stage
• Defined positioning algorithms and application software using
an innovative approach, harvesting AltBOC potential
• Tests with Spirent simulator and synthetic RINEX data revealed
very successful performances
– Implemented business plan for potential investors
– Disseminated results in dedicated workshop,
conferences, magazines, newspapers and internet
– Promising results, showing Galileo can bring high
benefits to the surveying community
– ENCORE project is considered a success!
Conclusions
© DEIMOS Engenharia and ENCORE consortium, All Rights Reserved
Contacts:[email protected]
22
THANK YOU!