UNCLASSIFIED
GLONASS Status and Evolution
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
21.10.2015 1
Sergey REVNIVYKH ISS-RESHETNEV’s GLONASS Directorate
2 IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
State Policy
GLONASS is a core of the national Positioning,
Navigation, and Timing (PNT)
Government commitments to sustain and develop of
PNT infrastructure
GLONASS civil signals are open and free worldwide
GLONASS and GLONASS/GNSS equipment are to be
used in state/public applications
The Presidential Decree № 638 dated May 17, 2007
“On Use of GLONASS (Global Navigation Satellite System) for the Benefit of Social and Economic Development of the Russian Federation “
The GLONASS Federal Program is an instrument for National PNT Policy Implementation
3 IGNSS Symposium 2015 Outrigger Gold Coast, Australia. 14-16 July, 2015
GLONASS is compatible with other GNSS, interoperable at the user level, worldwide recognized and used
Results of the first Federal GLONASS Program 2002 - 2011
The GLONASS constellation is 100 % deployed – 2002 6-7 satellites are in mission operation
– 2012 24 satellites are in mission operation
Availability – 2002 18%
– 2012 100%
Accuracy is provided on a competitive level – 2006 35 m (1 sigma)
– 2012 2.8 m (1 sigma)
Glonass–K, a new generation of GLONASS family, is
under flight test now
GLONASS Constellation restoration
GLONASS accuracy improvement
Space segment evolution
Glonass 1982
Glonass-M 2003
Glonass-K Flight Test 2011
4 IGNSS Symposium 2015 Outrigger Gold Coast, Australia. 14-16 July, 2015
Goals of the Second Federal GLONASS Program
System performance improvement in terms of accuracy and
integrity
Provision of guaranteed positioning, navigation and timing
solutions under limited visibility, interference and jamming
conditions
Enhancement of current application efficiency and domains
The guaranteed provision of announced performances is the key indicator of program implementation quality
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
GLONASS System Architecture
21.10.2015 5
GLONASS is the sophisticated system comprising interconnected components with harmonized operational characteristics
GLONASS
GLONASS
Space
Complex
Facilities for Earth orientation and
rotation parameters determination and
prediction
UTC(SU) generation and keeping
facilities
Wide-area Differential Correction
and Monitoring System
(SDCM-SBAS)
Global Precise Positioning System
Regional and local-area
augmentations
Application systems and equipment for civil users Application systems and equipment for special
users
Augmentation systems Supporting systems
User segment
Facilities for fundamental
astronomical and geodetic parameters
refinement
Facilities for Earth model and national
reference coordinate system provision
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
GLONASS Space Complex Architecture
21.10.2015 6
Constellation
Rocket and space
complexes
Ground segment
Global one-way
measuring stations
network
Glonass-M
Glonass-K
Glonass-K2
Plesetsk RSC
• Soyuz-2 LV
• Fregat Booster
Ground Control
Segment
Synchronization and
Time Scale
generation facilities
Baikonur RSC
• Proton-M LV
• Breeze-M Booster
Svobodny RSC
• Angara LV
• Breeze-M Booster
Advanced
development
Advanced development
Advanced development
Space Complex is the core element of the GLONASS System
GLONASS Space Complex
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
20
GLONASS Constellation Status
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I II III
1
4
5 13
12
11
9
23
24
714 +04
19
20
21
22
3
17
2
Status as of July 31, 2015.
Total 28 S/Cs
Operational (Glonass-M) 23 S/Cs
Maintenance (Glonass-M # 14) 1 S/C
Under flight test (Glonass-K1) 2 S/Cs
Under investigation (Glonass-M) 2 S/Cs
747 -04
730 +01
8
7
6 733 -04
745 +05
743 +06
744 +05
742 +06
734 +01
15
715 -07
716 +00
738 -01
736 -02
717 -07
723 +00
737 -01
721 -02
732 +03
735 +02
746
754 -03
720 +03
719 +02
725
731 -03
10
755 +04
14
21
18
16
17
20
9 702 +07
701 -05
20
Provides L1 and L2 FDMA open access service
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
GLONASS Status Information
21.10.2015 8
www.glonass-iac.ru
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
AVAILABILITY PERFORMANCE 20/10/2015
21.10.2015 9
Mean Global Availability = 99.9 % (averaged on the day time interval, PDOP ≤ 6, mask angle 5°)
Instant PDOP map (mask angle 5°)
The current configuration of GLONASS constellation enables continuous navigation worldwide.
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
ACCURACY PERFORMANCE 20/10/2015
21.10.2015 10
1.5 m
1*10-14
GLONASS SIS user range error (RMS), m
Daily GLONASS satellites clock stability (Allan variation)
GLONASS meets all technical requirements for Glonass-M constellation
1*10-13
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
Recent Events and Constellation Sustainment Plans
21.10.2015 11
• Glonass-M No.54 – March 24, 2014
• Glonass-М No.55 – June 14, 2014
• 1 Glonass-К1 satellite – December
1, 2014
• 2015-2016: up to 9 launches of
Glonass-M satellites (all are in
stock)
• The preferences to Soyuz or
Proton-M is given based on the
operational needs
Launch of Glonass-M No. 54
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
Satellite Evolution
21.10.2015 12
Longer guaranteed lifetime
Modernization of S/C support systems
New CDMA signals
Improvement of on-board clock stability
Advanced technologies for monitoring and control, orbit and clock data provision (cross-link)
New satellites ensure GLONASS accuracy improvement and broaden application domain.
Glonass –K1
Capability for advanced payload flight tests
Extra functions
Glonass -K2
Glonass - M
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
Launch Complex
21.10.2015 13
Group launch of GLONASS
satellites using:
Proton-M LV;
Angara-5 LV
Launch complex composition : Integrated launch vehicle (LV + Booster+ SC + Fairing)
Launch site
Technical facility
Ascending phase control facilities
Single launch using:
Soyuz-2 LV;
Angara-A5 LV
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
Ground Segment of Space Complex
21.10.2015 14
Ground Segment
GLONASS Time generation and
keeping
Satellites clock synchronization
versus GLONASS Time
Prediction of GLONASS Time drift
versus the UTC (SU)
Prediction of UTC (SU) drift versus
Universal Time
Ground segment will ensure better performances of GLONASS System Space Complex for all
categories of users.
Satellite TT&C control
Orbit and Clock Data calculation
and upload
SIS quality control
Onboard Time Scale reference to
the Central Synchronizer TS
Ground Control Segment GLONASS Time Scale Generation
and Synchronization Facility
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
GLONASS Ground Control Segment
21.10.2015 15
New GLONASS Ground Segment will
include: Extension of the monitoring station network
over the Russian territory
Deployment of monitoring station network in Antarctica
Extension of uplink station network throughout the Russian territory
Deployment of global monitoring station network outside the Russian territory
Further use of crosslink capabilities for Orbit and Clock data provision
Creation of high–stable Time Scale based on distributed system clocks synchronized versus the UTC (SU)
Regional GLONASS Segment
Antarctic GLONASS Segment
Equatorial GLONASS Segment
GLONASS Network Extension
Accuracy of GLONASS system Space Complex depends on well-coordinated operation and coherency of space and ground segment characteristics
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
Way Forward for Performance Improvement
Modernization of the Ground Control Segment: Data processing SW update increasing the upload rate and of orbit and
clock data accuracy improvement
Use the radio ISL for orbit and clock data update rate increasing
Global monitoring station network deployment
Modernization of Space Segment: On-board SW update to use the radio ISL increasing the rate of orbit and
clock data upload
Intersignal, interfrequency and interchannel delays calibration
On-board clock stability improvement
New CDMA signals introduction
Flight test of new on-board clocks (new Rb, Cs and H clocks)
21.10.2015 16
The target is 0.3 m of SIS URE (one sigma)
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
ISL capability for O&C data update
21.10.2015 17
Technical feasibility tested and confirmed for orbit and clock data update as 24 times per day
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
New CDMA GLONASS Signals
L5OCM L3OC L2SC L2OC L1OCM L1SC L1OC
fc. MHz 1176.45 1202.025 1248.06 1575.42 1600.995
Max Bandwidth, MHz 20.5 15.4 4.1 15.4 4.1
The max power of
transmitter, dBW
16.0 20.0 21.6
Data Signal BPSK(10) BOC(5,2.5) BPSK (1) BOC(5,2.5) BPSK (1)
Pilot Signal BPSK(10) BOC(5,2.5) BOC (1,1) BOC(5,2.5) BOC (1,1)
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under study
The ICD documents are under development
“SF” – Secured FDMA Signal “OF” – Open FDMA Signal “SC” – Secured CDMA Signal “OC” – Open CDMA Signal
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
New CDMA Signals Implementation Plan
S/V Type Glonass-M Glonass-K1 Glonass-K2
S/V # ≤ 54 55-61 11Л 12Л 15Л 16Л
17Л- -23Л
13Л, 14Л ≥24Л
S/V General View
Phased Array Antenna 1 Phase Center centered at the longitudinal –X axis, passing through the CoM
- -
L1OF
L1SF
L2OF
L2SF
L1OF
L1SF
L2OF
L2SF
L3OC
L1OF
L1SF
L2OF
L2SF
L3OC
L1OС
L1SС
L2OС
L2SС
L3OC
L1OС
L1SС
L2OС
L2SС
L3OC
L1OF
L1SF
L2OF
L2SF
Phased Array Antenna 2 Phase Center displaced of longitudinal –X axis
L1OF
L1SF
L2OF
L2SF
L1OF
L1SF
L2OF
L2SF
- - - L1OF
L1SF
L2OF
L2SF
-
Helical Antenna 3 Phase Center displaced of longitudinal –X axis
- L3OC L3OC - L2SC - -
21.10.2015 19
“SF” – Secured FDMA Signal “OF” – Open FDMA Signal “SC” – Secured CDMA Signal “OC” – Open CDMA Signal
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
Glonass-M # 54
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APC
CM
L1 (OF, SF)
L2 (OF, SF)
Хс
CM
Zс
Yс
Yс
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
Glonass-M ## 55 … 61
21.10.2015 21
APC
CM
L1 (OF, SF)
L2 (OF, SF)
Хс
CM
Zс
Yс
L3OC APC
Yс
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
Satellites of current GLONASS constellation, transmitting L3OC
21.10.2015 22
Plane 3
Plane 1
17
24 23
18
19 20
21
22
Plane 2
15 16
9
10
11 12
13
14
8
7
6
5
4
3
2
1
Glonass-M
No. 755
(L3 separate nav.
antenna)
Glonass-K
No. 701
(L3 separate nav.
antenna)
Glonass-K
No. 702
(common L1, L2, L3
nav. antenna)
L3 phase center
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
GLONASS L3 CDMA (1st phase)
21.10.2015 23
Signal modulation: BPSK (10)
Central frequency: 1202.025 MHz
Navigation message: fixed frame structure
Implemented: GLONASS-K #701 and #702
L3 CDMA signal spectrum
The navigation message superframe structure
http://digital.gpsworld.com/April2011#&pageSet=21
After flight test completion the navigation message will change to the flexible row structure with on-board SW upgrade
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
GLONASS L3 CDMA (2nd phase) New Structure for GLONASS Nav Message
21.10.2015 24
L3 CDMA signal spectrum (no change)
The navigation message flexible row structure
http://digital.gpsworld.com/November2013#&pageSet=18
All new satellites will transmit L3 CDMA signal with the flexible row structure
Signal modulation: BPSK (10)
Central frequency: 1202.025 MHz
Navigation message: flexible row structure
Implemented: GLONASS-M #755
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
Tentative Launch Program
21.10.2015 25
2015 2016 2017 2018 2019 2020 2021 I II III IV I II III IV I II III IV I II III IV I II III IV I II III IV I II III IV
Glonass-М (9 КА) Glonass-К2 (6+ КА)
52 53 51
56
57
58
59
60
61 K2
13
K2
14
K2
24
K2
25
K2
26
K2
27
Glonass-К1 (9 КА)
K1
15
K1
16
K1
17
K1
18
K1
19
K1
20
K1
21
K1
22
K1
23
9 Glonass-M satellites in stock
9 Glonass-K1 satellites are being contracted
Glonass-K2 satellites are in the development
Soyuz-2.1b with Fregat are available
Proton-M with DM-03 are available
The lift-offs will be implemented as necessary to keep the nominal constellation status (24 operational satellites)
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
New Signals Implementation Forecast
21.10.2015 26
0 1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Glonass-M+ Glonass-K1 Glonass-K1+ Glonass-K2 Glonass-KM
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IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
International Cooperation
21.10.2015 27
Tasks: – Set the rules at the world satellite navigation
market which are acceptable in the international
organizations for all GNSS
– Develop common standards
– Ensure GNSS compatibility and interoperability,
and protection of navigation RF spectrum
Objectives Integration GLONASS into the global navigation infrastructure in order to provide reliable
service for user benefit worldwide
Development of the GLONASS system to meet the increasing demands of all types of users providing GNSS compatibility and interoperability
Mechanism: Multilateral cooperation in the frame of the International Committee on GNSS
Bilateral cooperation regarding compatibility and interoperability issues with GNSS providers USA, EU,
India, China
Bilateral and multilateral cooperation for GLONASS use including CIS, BRICS
UNCLASSIFIED
IAIN World Congress 2015 20–23 October 2015, Prague, Czech Republic – Corinthia Hotel Prague
End of Slides
Thank you for your attention!
21.10.2015 28
Sergey REVNIVYKH Deputy Director GLONASS Directorate ISS RESHETNEV Corporation office: +7 (495) 687-35-17 cell: +7 (916) 715-40-40 [email protected] [email protected]