# Presentation: 434804

## Civil GPS Interface Committee
International Sub-Committee
May 7, 2006

John E. AugustineActing Director, Office of Navigation and Spectrum Policy U.S. Department of Transportation 

**International Sub-Committee**
***May 7, 2006***
**John E. Augustine****Acting Director, Office of Navigation and Spectrum Policy ****U.S. Department of Transportation***** ***

**The Future of Satellite Navigation Services**** **** ****“*****Evolving to a Multiple GNSS Environment*****”**

## Overview

**GPS  Today **
**New Horizons**
**U.S. Policy Update**
**Investments for the Future**
**The Way Ahead**

## SatNav/GPS Today

**Satellite navigation is a global utility with GPS providing solid foundation for global users**
**Consistent, predictable, dependable performance**
**Facilitating efficiency, safety, environmental, public security, scientific and many other innovations**
**GPS and its augmentations were wonderful concepts 15-20 years ago, now a reality like Internet **
**Augmentations assure safety services and further improve performance free of direct use charges**
**Scalable applications enabling untold, new capabilities**
**Toolkit — plug in, use what you need, add what you want **

**Available Now--Empowering the Future**

## New Horizons

**Sep 2005 – launch first GPS with 2****nd**** civil signal**
**Dec 2005 – launch first Galileo test satellite**
**Dec 2005 – launch 3 GLONASS satellites**
**This year – European EGNOS goes operational **
**Japan preparing for MTSAT ops and QZSS **
**India moving ahead with GAGAN and IRNS**

**Interoperability key to seamless global operations**

##  1st modernized satellite (IIR-M)
 Set operational Dec 16, 2005
 Broadcasting L2C and M-Code
 5 new monitor stations integrated  into GPS operational network
 6 more stations to follow by end of year
 Accuracy Improvement Initiative
 Improves accuracy 10-15%
 GPS Ops Center (GPSOC) on-line
  Supporting customers worldwide

** ****Set operational Dec 16, 2005**
** ****Broadcasting L2C and M-Code**
** ****5 new monitor stations integrated  into GPS operational network**
** ****6 more stations to follow by end of year**
** ****Accuracy Improvement Initiative**
** ****Improves accuracy 10-15%**
** ****GPS Ops Center (GPSOC) on-line**
**  ****Supporting customers worldwide**

**	****Recent GPS Improvements**

**GPS continuing to improve its global service**** **

## U.S. Policy Update 

**2005 Federal Radionavigation Plan (FRP) published**
**PNT Policy expanded to address all Space-Based Positioning, Navigation, and Timing**** (PNT)**
**GPS and augmentations **
**Recognizes other States as service providers**
**New U.S. PNT Management Processes**
**National Space-Based PNT Executive Committee  and National Coordination Office**** **
**Establishing a formal PNT Advisory Committee**** **
**Assessing best means for international participation**

**Demonstrates U.S. Government commitment to all stakeholders, including international community**

## U.S. PNT Policy

**Recognizes increased civil, commercial, homeland security and scientific use**
**Spans economic and critical infrastructures **
**Need to plan for backup capabilities and services **
**Commits to continued modernization of GPS and its augmentations for improving global services **
**Keeps GPS free of direct user fees **
**Maintains  open, free access to information necessary  to use these civil services**
**Reaffirms end of civil service degradation (SA)**
**Performance to meet, or exceed, foreign PNT systems**
**Work to ensure that foreign PNT systems are interoperable, as well as compatible, with GPS**

## Investments for the Future

**All future GPS will transmit the ****2****nd**** civil signal (L2C)**
**GLONASS and augmentations expanding**** **
**First GPS launch with 3****rd**** civil signal (L5) – Jan 2007**
**Full Galileo constellation ****– 2011-2012 **
**Completing definition phase for GPS III**
**Introduces new capabilities including L1C (2013-2030)**
**Promotes opportunities for greater cooperation in future system of systems**

**Space-based PNT is centerpiece of the future transportation infrastructure**

## U.S. looks forward to working with all to ensure GNSS systems are interoperable for the benefit of all users worldwide 

GPS will continue modernizing and improving its capabilities to remain a leader in GNSS global capabilities

**GPS will continue modernizing and improving its capabilities to remain a leader in GNSS global capabilities**

**The Way Ahead**

- BACKUPS

## GPS Single Frequency Performance

**GPS Single Frequency Performance**

**Decreasing range error**

***Standard***

**Signal in Space RMS URE: Root Mean Square User Range Error**

**Continuously Improving GPS Performance**

## GPS Constellation Status

**16 Block II/IIA satellites operational**
**12 Block IIR satellites operational**
**Modernizing 8 more Block IIR satellites**
**First Block IIR-M now in orbit **
**Launched Sep 25, 2005**
**GPS IIF launch projected for Jan 2007**
**Continuously assessing constellation                   health to determine launch need **
**Next launch no earlier than May 2006**
**Global GPS civil service performance          commitment met continuously without interruption since Dec 1993**

**29 Operating Satellites**** **
**(to ensure 24)**

## Ground Differential GPS Networks

**Over 50 international partners provide common services  for maritime use--now expanding to inland applications**

## GPS Space-Based Augmentations 

**Geostationary satellites provide regional coverage**
**GPS-like signals permit use by simple receivers**
**International Partner Service Providers**
**US (WAAS),  Europe (EGNOS), Japan (MTSAT), and      India (GAGAN)**
**WAAS operational – Jul 03; Expanding capability with L5 **
**GPS-based EGNOS leading way for Galileo**
**Independent signal monitoring supports the interests of each individual State**
**International assured aviation integrity standard**

## GPS Space-Based Augmentations