Download - Global Positioning System
Global Positioning Global Positioning SystemSystem
IntroductionIntroduction
Technical descriptionTechnical description
Organisational structureOrganisational structure
EconomicsEconomics
Satellites constellationSatellites constellation
TriangulationTriangulation
Technical specificationsTechnical specifications
OrganizationOrganization
IGEB (Interagency GPS Executive Board). IGEB (Interagency GPS Executive Board). No direct user fees for civil useNo direct user fees for civil useProtect the spectrum from disruption and Protect the spectrum from disruption and
interferenceinterferenceOpen public signal structure and market Open public signal structure and market
competitioncompetitionUse of standardsUse of standards Global compatibility & interoperabilityGlobal compatibility & interoperability Security issues against misuse (national and Security issues against misuse (national and
international)international)
Market trendsMarket trends
Projections of 2006 GPS World Projections of 2006 GPS World MarketMarket
ConclusionsConclusions
GPS is a mature system governed by GPS is a mature system governed by consistent policiesconsistent policies
Constant will and actions to improve the Constant will and actions to improve the system in order to satisfy the users (both system in order to satisfy the users (both civilian and military)civilian and military)
GalileoGalileo
Frequency IssuesFrequency Issues
Is there still any realistic scenario in witch Is there still any realistic scenario in witch GPS would be withdrawn and Galileo GPS would be withdrawn and Galileo would continue independently ? would continue independently ?
What could be the consequence of a What could be the consequence of a jamming in signal because of Galileo ? > jamming in signal because of Galileo ? > Galileo and GPS signal will be lost ... Galileo and GPS signal will be lost ...
Negotiation with each covered country for Negotiation with each covered country for the use of frequency spectrum the use of frequency spectrum
Numerous actors involvedNumerous actors involved
Entropy in decisionsEntropy in decisions
Private / Public PartnershipPrivate / Public PartnershipHow own decision in case of disagreement ?How own decision in case of disagreement ?Risk : decrease in quality of servicesRisk : decrease in quality of services
Gallileo = A projectGallileo = A project
Yet some decision by the European Yet some decision by the European Commission : a lot of decision postponed, Commission : a lot of decision postponed, some term like “cheer up”, …some term like “cheer up”, …
Optimal performance not immediateOptimal performance not immediate
Depend of profitableness …Depend of profitableness …→ →
ProfitablenessProfitableness
Would Gallileo not arrive too late : market Would Gallileo not arrive too late : market increase increase todaytoday, Gallileo arrives , Gallileo arrives tomorrowtomorrow
Based on three incomes :Based on three incomes :Royalties on chipset : would the increase of Royalties on chipset : would the increase of
performance that add Gallileo to GPS justify performance that add Gallileo to GPS justify the increase of price of the receiver the increase of price of the receiver
Assisted GNSSAssisted GNSSAuthenticationAuthentication
Quite few and in competition with GPS
Projection of the market view by Projection of the market view by Gallileo!Gallileo!
WHERE IS GPS !!!!
GPS : the future at GPS : the future at your dooryour door
US leadershipUS leadership
A joint Japan-US since 1998A joint Japan-US since 1998
NATONATO
Conflict US – Europe ???Conflict US – Europe ???
The future of GPSThe future of GPS
GPS L1 Signal for civil useGPS L1 Signal for civil useIn collaboration with users In collaboration with users
QZSSQZSS
DGPSDGPS
GPS 3GPS 3
GPS 3GPS 3
More accurateMore accurateHorizontal : 0.5 m up to 0.2 mHorizontal : 0.5 m up to 0.2 mVertical : 1.1 mVertical : 1.1 mTime delay 1.3 nSecTime delay 1.3 nSec
Better integrity and reliabilityBetter integrity and reliability
Available from 2005Available from 2005
ConclusionConclusion GPS is a mature system !GPS is a mature system !
Stunned success !!!Stunned success !!!
Countless innovations !Countless innovations !