GPS/GNSS2007

GPS/GNSS

GPS/GNSS2007

Nov. 20, 2007

Introduction

GPS

GPSGPS

GPS

DGPSMSAS/SBAS

GPS

GPSGlobal Positioning System

1824MEO197319781993IOC1995FOC2000S/A2005IIR-MNNSS

GNSSGlobal Navigation Satellite System

ICAO GPS/GLONASSGPS/GLONASS/Galileo/

GPS Block I1978

GPS Block II/IIA1989

GPS Block IIR1997

GPS Block IIF2008

ICD Interface Control

Document

IS=Interface Specification

2462km3015511:58SPS:L11575.42MHzC/A1.023McpsPPSL21227.6MHzP/Y10.23McpsCDMAPRN13750bps1978 Block I

1989 Block II/IIASA

1997 Block IIRAutonav

2005 Block IIR-M L2C

2008 Block IIFL5

MCS 1MCSMonitor StationMS 61MCSL1/L2Ground AntennaGA 4

10-91ns=0.3m

r = r + s

1 s

DOPPDOP2 = HDOP2 + VDOP2DOPDOP

GPS

(C. Bellows, 46th CGSIC, 2006)

(C. Bellows, 46th CGSIC, 2006)

150050bps30#1330#45GPS2512.5

a, e

i, W

w

n

24IODEIODEGPS

TTFFTime to First Fix43060

45GPS32

246301GPS2

20011019

geometry

DOPDOPdilution of precisionDOPDOP

DGPSDOP

GPS

DOP

DOP

DGPSDGPS

1

2>4

15510

II/IIA22IIR3

21ms2m

GPS Space and Control Clock and Reaction Wheel Performance Status (as of 06 Jul 06) - C. Bellows, 46th CGSIC, 2006

Clock

meets spec

watch list

dead

unused

in use

m

IGS

250400kmF

14:00LT5nsRMS

2 GPS

3

2

2.5m7km510

L1 C/A300m

1/4110%RWC0.1

Leica

RTK-GPS

GPSL1L2

PYPP

L2P/YC/AL2L16dB2

GPS

12

1

GPS

RTCM

CMR

RINEX

:

LAN

:

RTCMSC-104GPS1985Version 2.3200350bpsGPS301RS-232C0x400x7F644800bps

19IODE3GLONASSRTK-GPS

RTCM-SC104 2.2

cm

RTK-GPSRealtime Kinematic GPS2.4k9.6kbpsFIXFLOAT

GPSRTCM-SC10410km RTK-GPS

RTK-GPS10kmRTK10km100km

VRSvirtual reference station

RTK-GPS

a

20200

= a1-a

DGPS

GPS

DGPS

DGPS

PPP

DGPS

RTK-GPS

DGPS

RTK

RTCM

SBAS/MSAS

GPS

DICAO GNSSMSASMSAS

augmentation systemGPS/GLONASS

1

2

3

GPSGPSFM

ICAO GNSSSBAS/GBAS/ABAS

DGPSRTCM-SC104ITU-R M.823-1DGPSNDGPSNationwide DGPS

HP

2724

1135.psd

SBAS: Satellite-Based Augmentation System

GBAS: Ground-Based Augmentation System

ABAS: Airborne-Based Augmentation System

ICAOGPSGPSICAO SARPs

SBASWAAS20037EGNOS20057MSASMTSAT-1R/26/7

200727

CWAASWAASGAGANPRN

MTSAT-1RRSC

ICAO SBASGPS L1

MTSAT-1R620052MTSAT-2720062

2005200792007927

107107

GPS

SBASGPS

DGPS

DGPS

DGPSWide-Area Differential GPSWADGPS100100bps

integrityGPS

safety-of-life application

GPSGPSMSAS

200412JSTPRN23100km3PRN23

GPSGPSHealthAlertON/OFF

107

95%95%95%5%

5%

99.99999%5%10-7 99.99999%95%5%

107 HPLVPLPLAlert Limit

AL

GEONET 940058 05/11/14-16

PRN129 (MTSAT-1R) Test Signal

GEONET 3011

06/5/20 00:41-08:06

PRN129 (MTSAT-1R)

Test Signal

APV-I mode

HAL = 40m

VAL = 50m

All combinations

SBASNPA

MSAS

WAAS

EGNOS

100%

GPSGLONASSGalileoICAO SBASMSAS

SA20005Block IIR-M2005L2=1227.6MHzARNSL2CIS-GPS-200DLegacy NAV

Block IIF2008L5=1176.45MHzSafety-of-LifeOKDME9601215MHzL5IS-GPS-70510.23Mcps

Block III2013L1=1575.42MHzL1CDraft IS-GPS-80020064

L-AIILegacy Accuracy Improvement InitiativeMSNGA12MCS2007MCS

PNT Policy200412

(A. Ballenger, 46th CGSIC, 2006)

(A. Ballenger, 46th CGSIC, 2006)

24319100km11200711GLONASS-M36511:15L115921610MHzSP0.511MHz SAL212391254MHzHP5.11MHzFDMA

GLONASSGLONASS-M2003 SPL27GLONASS-K2008 3L310GLONASS-KM 2015?

20061Federal GLONASS Program 2002-2011MOCMinimum Operational Capability182007FOCFull Operational Capability242009

1999EU30323600kmOSOpen Service GPS SPSCSCommercial Service SoLSafety-of-Life ServicePRSPublic Regulated Service

3E11589.5MHz+E21561MHz OS/CS/SoL/PRSE612601300MHz CS/PRSE5a1176MHz+E5b1201.5MHz OS/SoL/CS(E5b)

2005GIOVE-A2008 IOV2010 FOC

WAAS200372008FOC

EGNOS20057200742008

MSAS2200520079200732007927OK

2009200920101GPSL1C/L2C/L5L1 C/AGPSSBASL1-SAIF

LEX

L1-SAIFICAO SBAS

135

0.145

QZS

GPS

Conclusion

GPS/GNSS

MSAS9L1L1-SAIFIS-QZSS

GPSGLONASS/Galileo

4.6

4.3

3.0

2.7

2.1

1.8

1.5

1.1

0

1

2

3

4

5

6

7

19901992199419961997199920012005

Year

RMS URE (m)

-20

0

20

-20

0

20

ij

, m

ikj

, m

Time since 15.07.2005, days

3803703603503403303203103002902802702602502402302202102001901801701601501401301201101009080706050403020100

SISRE, m

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

-20

0

20

-20

0

20

ij

, m

ikj

, m

-10

-5

0

5

10

, m

-5

0

5

10

15

k

, m

1

2

3

4

5

-10

0

10

20

o

, h

x

, m

14

18

05

21

23

06

29

30

N

S

E

W

30

o

60

o

0

o

09

90

o

25

0

30

60

90

0

10

20

30

40

qp

, deg

, m

-20

0

20

-20

0

20

ij

, m

ikj

, m

Global GPS Position Accuracy 2006

0

5

10

15

20

25

Jan-06Feb-06Mar-06Apr-06May-06Jun-06Jul-06Aug-06

Date

95% Position Accuracy (meters)

Global Vertical Performance Threshold

Global 95% Vertical Error

Global Horizontal Performance Threshold

Global Horizontal 95% Error

Global PDOP Trend 2006

0

1

2

3

4

5

6

7

Jan-06Feb-06Mar-06Apr-06May-06Jun-06Jul-06Aug-06

Date

Average Maximum Global PDOP

Average Global Maximum PDOP

PDOP Global 98% Threshold

90

120

150

180

-60

0

60

Longitude, deg

Latitude, deg

0

10

20

30

40

50

60

70

80

90

100

28.08.200629.08.200630.08.200631.08.200601.09.200602.09.200603.09.200604.09.200605.09.200606.09.200607.09.200608.09.200609.09.200610.09.200611.09.200612.09.200613.09.200614.09.200615.09.200616.09.200617.09.200618.09.200619.09.200620.09.200621.09.2006

GPSGLONASS