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Is there still any realistic scenario in witch Is there still any realistic scenario in witch GPS would be withdrawn and Galileo GPS would be withdrawn and Galileo would continue independently ?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 !