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Sergey RevnivykhTatyana MirgorodskayaPNT CenterCentral Research Institute of Machine Building, Roscosmossergey.revnivykh@glonass‐iac.ru
Pacific PNT 2013 ConferenceApril 22‐25, 2013Honolulu, Hawaii
State Policy
GLONASS is a dual use system, essential component of the critical national infrastructure to provide the national security and economy development
GLONASS open service is free for all users without restrictions
GLONASS Federal Program is a mechanism to implement the state policy
International cooperation is a key issue to provide GNSS compatibility and interoperability and GLONASS global use extension
“…
last year (in 2011) we were able to
deploy the nominal orbital
constellation: global navigation system
has been established… that is the
great result. This is the second global
operational system after American
GPS. For last five years accuracy of
GLONASS improved by order of ten –
from 35 m to 2.8 m. GPS has better
accuracy, but anyway we have
comparable performance absolutely…”
V. PutinFebruary 2,.2012
GLONASS Current Status
3
Orbital constellation status:
TOTAL satellites:
29
Glonass‐M 28Glonass‐K 1
In operational status (healthy) 24
In maintenance
0
Orbital spares
3
In flight test
1
In the commissioning
0
In study of the designer general
1
GLONASS‐M Space Vehicle
Life time 7 yearsMass 1415 kgPower capacity 1450 WNavigation payload:
Mass 250 kgPower consumption 580 W
Laser reflectors
panel
GLONASS‐K1
Life time 10 yearsMass 965 kgPower capacity 1460 WNavigation payload:
Mass 260 kgPower consumption 750 W
GLONASS performance in 2012
Practically the permanent global availability provided
Average accuracy is better than formally required
GLONASS is in worldwide use
Improvement of performances and their stability provision are priorities of system designer and system operator
New GLONASS Program for 2020
7
Program Purpose:•
GLONASS sustainment
•
GLONASS development•
GLONASS use
24 24 SVSV
Constellation Status Expected
2,8 м
0,6 м
GLONASS‐M GLONASS‐K1
GLONASS‐K2
GLONASS Architecture
GLONASS Space Complex SBAS (SDCM)
Ground based
augmentations
Fundamental SystemsPZ‐90, UTC(SU), ERP,
Gravity model
User SegmentSpecial
User SegmentCivil
Global PPP
GLONASS Development Strategy
Performance improvement
AccuracyAvailabilityIntegrityInterference protectionService area extension
Performance stability and predictability
Performance guarantee
Real time performance monitoring
Space segment developmentNew satellites with new performanceOrbital constellation modernization to provide more operational satellites (>24)
New ground control segmentNew CDMA navigation signals Augmentations development
Navigation performance improvementService area extension
Improvement of PZ‐90, UTC(SU), ERP, Earth model…GNSS receiver integration with means using other sources of navigation dataGLONASS certificationTechnical and science basis for future developmentsNew principles of navigation study
GLONASS Signals
Signal L3OC L5OCM
Frequency 1202.025 1176.45
Data BPSK(10) study.
Pilot BPSK(10) study
Signal L2SC L2OCM
Frequency 1248.06
Data BOC(5,2.5) BPSK(1)
Pilot BOC(5,2.5) BOC(1,1)
Under Study
International cooperation
GLONASS is an essential component of the World GNSS
Provision of GNSS compatibility and interoperability
Common standards
GLONASS global use extension
11
СДКМСДКМ
Summary
GLONASS is a long‐term program beyond of 30‐ties
GLONASS is a basis of national PNT, essential component of national critical infrastructure providing national security and economy development
GLONASS is a global utility. Standard service is free without limitations
International cooperation is mandatory for GNSS development