CORS User Forum

1
Post-Processing versus Real-Time GNSS
Challenging Perspectives for CORS Georg Weber
BKG Frankfurt CORS User Forum 13 September
2006 Long Beach CA
2
Status

• The number of post-processing GNSS users
  decreases rapidly.
• At the same time the community of real-time
  users grows dramatically.
• With the exception of high precision reference
  system maintenance very soon there will remain
  only a few positioning applications carried out
  in a post-processing mode.  

3
(No Transcript)
4
The Challenge

• Is NGS/CORS running out of business
• So far mainly post-processing oriented public
  providers are requested to extend services
  towards real-time.
• How shall NGS/CORS cope with the new situation
  Should it add new products to its portfolio and
  what could they be
• What may be the appropriate technology to follow
• What could be an appropriate policy to align to 

5
Networked Transport of RTCM via Internet Protocol
(Ntrip) - GPRS/UMTS Mobile
Internet - Based on HTTP
Caster
Reference
Rover
6
(No Transcript)
7
September 2004 Ntrip becomes RTCM Standard
Selection of devices supporting Ntrip
8
European Status of NtripReal-Time GNSS Reference
Networks Who participates in
9
Ntrip StreamsEurope
10
Ntrip BroadcastersEurope
11
US Ntrip Broadcasting Examples
12

• Real-Time GNSS Reference Networks
• Why
• And what for

13

• Hourly / Daily RINEX Upload
• Why deliver a daily newspaper monthly

14
Post-Processing Versus Real-Time
Example forcontinuously aligning Reference
System ofNetworked RTK Service to ITRF / ETRS89
15
Real-Time Broadcast - Product Areas

• Satellite Orbits Clocks
• Ephemerides
• Troposphere
• Ionosphere
• Space-Weather
• Satellite Health
• Interference
• Natural Hazards
• DGPS/RTK

16
Ntrip GNSS Broadcast Service Concept
Administration
Raw Data
Derived Products
Reference Receiver
Rover Receiver
Reference Receiver
Rover Receiver
Reference Receiver
Rover Receiver
WAAS Receiver
NtripClient
NtripServer
NtripTracker
NtripTracker
NtripClient
NtripServer
NtripClient
NtripServer
NtripTracker
NtripServer
System Operator
System Operator
System Operator
DSL
Mobile IP
DSL
Mobile IP
DSL
DSL
Mobile PI
Mobile PI
Mobile IP
DSL
Mobile IP
DSL
DSL
Internet
Primary NtripCaster
Backup NtripMonitor
Backup NtripCaster
Primary NtripMonitor
Primary Conversion I
Primary Conversion II
17
Under discussion withinEuropean National Mapping
Agencies

• Common adaptation or even development of GNSS
  software package (real-time GPS engine) within
  the framework of EUREF.
• Long-term usage and maintenance to follow model
  adopted for handling of Bernese post-processing
  software (access to source code).

18

• Real-Time GNSS
• Policy Recommendations
• Upgrade all CORS stations to real-time
• Pick up any stream continuously made available
• Support formats accepted by client software
• Disseminate high-rate data
• Setup network of Ntrip Broadcasters
• Monitor stream flow and content
• Assist existing real-time services
• Participate in global stream exchange
• Start with pilot project Call for
  participation

19
TU Delft TU Dresden TU Graz TU Vienna Austria TU
of Civil Engineering Bucharest Tele-Info AG
Garbsen Telematica e.K. Telespazio spa Metera
Italy Thales Navigation France Thueringer
Landesvermessungsamt Top Geocart Bucharest
Romania Topcon Positiong Sys. USA Tower
Technologies Turin Trimble GmbH
Raunheim Trimble Italy Trimble Jena GmbH Trimble
Navigation Hook England Trimble Navigation
Sunnyvale USA Trimble Terrasat Trimble
Spain UNAVCO PBO Boulder UNSW Sydney
Australia UTI Systems Bucharest Romania Uni
Madrid Spain Uni Milan Agricultural
Institute Universidad Politecnica de Valencia
Spain Universidad de Alcala Guadalajara
Spain Universidad de Zaragoza Spain Universita
degli Studi di Padova Universita degli studi di
Napoli Italy Universitaet des Saarlandes Universi
tat de Leida Spain University of Bologna
Italy University of Brescia Italy University of
Colorado Boulder USA University of Cordoba
Spain University of Ferrara Italy University of
Ljublijana Slovenia University of Melbourne
Australia University of New South Wales Sydney
Australia University of Padova Italy University
of Rome University of Udine Italy University of
Valencia University of Warmia and Mazury
Olsztyn Poland University of Wroclaw Poland VI
INSTRUMENTS West Germiston South
Africa VPConsult GmbH Buchholz Germany WAT
Warsaw Poland Zimmermann-Optik GmbH
Rostock aee-GmbH Droessling Germany rMAP
Hungary samlltouch ApS Aabyhoj
Denmark t-mobile Netherlands td group spa
Italy Tecnotron Elektronik GmbH
Fraunhofer Institute for Applied Information
Techn. Fusion Numerics Inc Boulder USA GEFOS
Inc. Leica Praha Czech Republic GEOTOP
Romania GTS Internet Partners Jozefoslaw
Poland Galileo Systems Milano Geo GeoIT GmbH
Berlin GeoNav GmbH GeoSurvey GmbH
Waltersdorf Geocenter Valencia Spain Geodetic
Observatory Pecny Geofizyka-Torun Torun
Poland Geomatics Ankara Turkey Geostudio
s.r.l. Milano Italy Geotronics Praha Czech
Republic Greater Vancouver Regional District HTW
Dresden Fachbereich E-Technik Harpha sea d.o.o.
Koper Slovenija ICC Barcelona ICD Uni
Dortmund IGN France INMH Bucharest Romania INS
Sp. z.o.o. Poland INS Krakow Poland IREALP
Milano Italia ISEP Porto Portugal IfEN GmbH
München Inst of Geod. Astron. Univ Warsaw
Poland Inst. Sup. De Engenharia do Porto Inst. of
Cybernetics Tallinn Tech. Univ. Estonia Instr.
Geod. Tadeusz Nadowski Sp.j. Tychy
Poland Instytute Geodesy and Cartogr. Warsaw
Poland Integrated Navigation Sysems Ltd
England Intergis Romania JPL Caltech Pasadena
USA John Deere Werke Zweibrücken KEMNTSZ
Hungary Keytools Fourways South Africa LFTV AB
Sweden LKVK Saarland LNR Globalcom
Netherlands LVA Baden-Wuertemberg LVA
Mecklenburg-Vorpommern LVA NRW LVA Sachsen LVA
Schleswig-Hostein LVermG LSA LVermGeo
Rheinland-Pfalz Germany Labtnaeteruet Gaevle
Sweden Landesbetr. Verm. u. Geobasisinf.
Brandenburg Leica Geosystems France Leica
Geosystems Berlin Leica Geosystems Heerbrugg
Schweiz Leica Geosystems India Leica Geosystems
München
Leica Geosystems SA de CV Mexico Leica
Geosystems UK Logosystem S.p.A. Italy Loskot
Warsaw Poland MC Sistemi s.r.l. Vanzago
Italy Magneti Marelli Magnetic Lunch Software
Ltd. Canada Magán Bácsalmás Hungary Marek
Moskwinski sp.j. Warszawa Poland Materna
Information Communications Dortmund Military
University of Technology Warszawa
Poland Ministry of the Environment Copenhagen
Denmark NCAD USA NERC Space Geodesy
Facility National Geodetic Survey Silver
Spring Natural Resources Canada Naval Academy
Varna Bulgaria NetonWave2002 srl Bucharest
Romania Nybrovej Lyngby Denmark OPGK Gdansk
Poland OmniSTAR b.v. Overgas Sofia Bulgaria PF
Geokart-MGGP Poland PGK Vertical Zory
Poland PW Warsaw Poland Personaltech
Hungary Private Warszawa Prospectiuni
Bucharest Romania Proveo GmbH Crailsheim RISC
Software GmbH Hagenberg Austria Real
Observatorio Armada Spain Res. Inst.
Geod/Topogr/Cartogr Czech Republic Ruhrgas
AG S.C. Optoelectronica SCA Graphic Paper AB
Sundsvall Sweden SCIGN Pasadena USA SMT Saint
Marcel France SNTech Kft. Duka Hungary SP MTs
Schweden SP2BZW Bydgoszcz Poland Senatsverwaltun
g Stadt Berlin Servicio de Geodesia Inst.
Geographico Nacional Servizio Glociologico
Lombardo Italy Siemens Transp. Systems
Montrouge France Sirf Technology San Jose CA
Sistema Siam Spain Software Radio Technology
Midsomer Norton UK Sokkia BV Almere
Netherlands Sokkia Kft Stadt Karlsruhe Umwelt
und Arbeitsschutz Strata Software and Consultanc
Ltd. Bradford UK Studio Negroni Italy Studio
Tecnico Italy Surveys and Mapping South
Africa TELESPAZIO SPA ROMA ITALIY TSS Sp.J.
Poland
Ntrip Test Validation
HYBM Eskisehir Turkey 2U FM NSW
Australia 4cell Systems Kalisz
Poland A.R.P.A.V Rovigo Italy AGH University of
Science and Technology ALLSAT AMBRA srl
Romania Agenzia Spaziale Italiana Matera Assogeo
Srl Concorezzo Italy Astrata South Africa
(Pty)Ltd Astrata South Africa Rivonia South
Africa Astronomical Institute Univ. of Berne
Switzerland Ayuntamiento de Carbon. Carbo.
Almeria Espana BKF KVK MAI Budapest
Hungary BME Hungary Blinken AS Gressvik
Norway Budapest University of Technology and
Economics Budapesti Muszaki és Gazdaságtudományi
Egyetem CONAN s.r.o CRIAI Italy CRPV Cesena
Italy CSIC Madrid Cantabria University
Spain Centro Grafica s.r.l Messina
Italy Codevintec Milano Italy College of
Geoinformatics Szekesfehervar Hungary Compass-Spor
t Bt. Budapest Hungary County of Orange
California USA D.G.Service srl Rieti
Italia DAI Telecom Italy DB Netz AG Minden DGGI
University of Cagliari DLR Neustreliz DLR
Oberpfaffenhofen Dardalus Group Engineering Ltd.
Sofia Bulgaria Deut. Forschungsz. f. Kuenstl.
Intelligenz (DFKI) Dip. Scienze Terra Univ.
Ferrara Italy EDISON Milano Italy ESA-ESTEC Eas
tern-Hungarian Disaster Management Society Ecole
Centrale Paris France Ericsson Nikola Tesla
d.d. Zagreb Croatia FGAN-FHR HSZ FH
Bochum FIL-COLEX Ltd. FOMI Satellite Geodetic
Observatory Fachhochschule Bochum Faculty of
Sciences of Lisbon Lisboa Portugal Falcom
GmbH Finish Geodetic Institute Forest Research
Institute Cracow Poland