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Japan Aerospace
Exploration Agency
Features of the Internet Satellite
“KIZUNA” and its possible usage
WBU-ISOG FORUM, Tokyo
14 May 2009
Masahiko SAWABE
Space Applications and Promotion Center (SAPC)
Japan Aerospace Exploration Agency (JAXA)
Contents
Japan Aerospace
Exploration Agency
1. Features of KIZUNA
2. KIZUNA Fruits in FY2008
and Development into FY2009
3. KIZUNA Experiments
4. Summary
1
Japan Aerospace
Features of KIZUNA
Exploration Agency
High-Speed Data Communication Rate
• 155 Mbps for home use
(small terminal with 0.45m diameter class antenna )
• 1.2Gbps for business use
(large station with 5m diameter class antenna )
Wide Coverage
Ultra-high-data rate communications in a wide area of Asia /Pacific
region
Establishment of the Flexible Satellite Communication network
On-board switching provides the flexible network.
Remarks:
KIZUNA is a R&D satellite and is open to the experiment users,
such as of the institutes and universities, who study and develop
the satellite communications technologies.
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Outline of KIZUNA
Japan Aerospace
Exploration Agency
Launch February 23rd, 2008
MBA for Japanese Schedule by H2A Launcher
islands MBA for Southeast Asia
Mission
Life 5 years
Location 143 degree E
Dimension 3 x 2 x 8m
Span of Solar Paddles: 21.5m
MASS 4,850 kg ( lift off )
Tx & Rx APAA Electric 5,200W / EOL, Summer
Power Solstice
Attitude Zero-momentum 3-Axis
Outline of KIZUNA System Control Control
Ka-band Satellite with High Speed U/L : 27.5 – 28.6 GHz
Ka-band Satellite with High Speed Frequency
D/L : 17.7 – 18.8 GHz
Transmission Capability Gbps order
Transmission Capability Gbps order
Satellite > 18 dB/K ( MBA )
Bent pipe and Onboard ATM Switching
Bent pipe and Onboard ATM Switching G/T > 7 dB/K ( APAA)
Multi-Beam Antennas(MBA) and Active
Multi-Beam Antennas(MBA) and Active Satellite > 68 dBW ( MBA )
EIRP > 55 dBW ( APAA)
Phased Array Antennas(APAA) with
Phased Array Antennas(APAA) with
high speed scanning capability
high speed scanning capability Onboard
Processing ATM Baseband SW
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Japan Aerospace
MBA (Multi Beam Antenna)
Exploration Agency
MBA1
MBA2
MBA2 MBA1
Hong Kong
Beijing
Bangkok Manila
Bangalore Seoul
Kuala Lumpur Shanghai
Singapore *
Jakarta
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Japan Aerospace
APAA (Active Phased Array Antenna)
Exploration Agency
Rx APAA Tx APAA
APAA can hop its beams to
required points at 2msec
interval to provide a wide
coverage area.
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Japan Aerospace
Ground Terminals vs. Data Rate
Exploration Agency
Uplink KIZUNA Downlink
1.2Gbps Bent-pipe 1.2Gbps
(622Mbps x 2)
LET( >5mφ) LET( >5mφ)
Bent-pipe
~ 622Mbps ~ 622Mbps
SDR-VSAT( 2.4mφ) SDR-VSAT( 2.4mφ)
1.5~15 ps
5Mbps 155Mb
HDR-VSAT(1.2mφ) Onboard HDR-VSAT(1.2mφ)
ps Switch 155Mbps
1.5 - 6Mb
USAT (45cmφ) USAT (45cmφ)
MBA Spot Beam Area MBA Spot Beam Area
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KIZUNA User Terminals (Fixed Type)
Japan Aerospace
Exploration Agency
(for MBA area)
HDR-VSAT REF-VSAT USAT
Antenna System Diameter: 1.2 m Diameter: 1.2 m Diameter: 45 cm
Frequency Band Uplink 27.5 - 28.1 GHz
Downlink 17.7 - 18.3 GHz
Maximum Data Rate* Uplink 1.5-155 Mbps Uplink 1.5-51 Mbps Uplink 1.5 - 6 Mbps
Downlink 155 Mbps Downlink 155 Mbps Downlink 155 Mbps
HPA (High Power Amplifier) 100 W (250W TWTA) 40 W (SSPA) 5-10 W (20W TWTA)
Maximum EIRP 66.9 dBW 61.7 dBW 48.8 dBW
G/T (Figure of Merit) 19.0 dB/K 19.0 dB/K 11.5 dB/K
Modulation QPSK
Weight Approx. 4420kg Approx. 300kg Approx. 76kg
Power consumption 1,200W 1,100W 700W
* This data rate is for the satellite link, and includes overhead bits.
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KIZUNA User Terminals (Portable Type)
Japan Aerospace
Exploration Agency
(for MBA area)
Portable VSAT Portable USAT
Antenna System Diameter: 1.0 m Diameter: 45 cm
Frequency Band Uplink 27.5 - 28.1 GHz
Downlink 17.7 - 18.3 GHz
Maximum Data Rate* Uplink 1.5-24 Mbps Uplink 1.5 - 6 Mbps
Downlink 155 Mbps Downlink 155 Mbps
HPA (High Power Amplifier) 40 W (SSPA) 10 W (SSPA)
Maximum EIRP 60.0 dBW 48.8 dBW
G/T (Figure of Merit) 19.0 dB/K 11.5 dB/K
Modulation QPSK
Weight Approx. 250kg Approx. 53kg
Power consumption 1,100W 700W
* This data rate is for the satellite link, and includes overhead bits.
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Contents
Japan Aerospace
Exploration Agency
1. Features of KIZUNA
2. KIZUNA Fruits in FY2008
and Development into FY2009
3. KIZUNA Experiments
4. Summary
9
Japan Aerospace
Exploration Agency
Milestones for KIZUNA Experiments
FY2007 FY 2008 FY2009
Jan - Mar Apr - Jun Jul - Sep Oct - Dec Jan - Mar Apr - Jun
▲
Launch
（Feb.
23）
Critical Phase (until Mar. 1st)
Geostationary
(Mar.14)
Check-out
Basic Experiments
Application Experiments
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KIZUNA Fruits in FY2008 Japan Aerospace
and Development into FY2009
Exploration Agency
Fruits in FY2008
KIZUNA broke the world record of the highest data rate which existing communication
satellites have never achieved.
All of the demonstrative experiments to be simulated the case of disasters have conducted
successfully. As a result, the video data transmission system via KIZUNA would be considered
for the measure of the disaster prevention activity by Geographical Survey Institute Japan (GSI-
J).
JAXA conducted also joint experiments of the distance education among Universities and
Institutes in Asian regions of Thailand, the Philippines, Malaysia, Hong Kong and Indonesia.
JAXA and NHK succeeded the multiple transmission of real-time IP transmission(75Mbps) with
3 high definition television programs simultaneously as well as the two-way IP video data
transmissions.
Development into FY2009
Fruits of demonstrative basic experiments such as the disaster prevention activity, the HDTV
news transmission, the distance education will be applied to other new applications experiments
such as GSI disaster prevention demonstrative experiment.
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Contents
Japan Aerospace
Exploration Agency
1. Features of KIZUNA
2. KIZUNA Fruits in FY2008
and Development into FY2009
3. KIZUNA Experiments
4. Summary
12
KIZUNA Experiments (1) Japan Aerospace
Exploration Agency
JAXA and NICT performed these experiment during checkout phase.
IP communication with a 1.2 Gbps satellite communication 622Mbps communication using the
transmission speed of 155Mbps Ka-band APAA.
○Regenerative switching functions ○Ultra high data rate ○High data rate communication at
between an ultra small-size user communication at 1.2 Gbps: 622Mbps using the Ka-band
terminal (45 cm-diameter (622 Mbps x 2 waves), APAA.
antenna) and a high-speed small ○The fastest communication ○Fastest speed in the world using
ground station (1.2 m-diameter speed in the world through active phased array antenna.
antenna) using the onboard multi- communication satellites
beam antenna
○IP communications with a
transmission speed of 155 Mbps
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KIZUNA Experiments (2) Japan Aerospace
Exploration Agency
JAXA conducted these experiment in the operation phase.
HDTV transmission from Beijing Olympic Emergency Transmission in Disaster ALOS observation Data Transmission
site with Portable VSAT (NHK) Site (LASCOM) Experiment (GISTDA)
○HDTV 3channels multiplex transmission . ○The local HQ in the disaster area ○Confirmation to largely shorten
○High quality HDTV at 75Mbps grasped the suffering situation more transmission time of DAICHI observation
transmission of IP. This HDTV of IP precisely by HDTV transmitting. data from Japan to GISTDA (Thailand).
transmission rate is the fastest speed in the ○HQ in municipal office grasped the ○To help prevention of secondary disaster
world. situation of whole stricken area with real- by grasping the disaster situation with
○Contribute to realization of the remote time observation picture from earth DAICHI observation data via KIZUNA
editing work by high speed two-way observation satellite, Daichi. quickly.
communication (around 40Mbps). ○Both HQ in municipal office and
○Multicast function disaster area share the
confirmation to foreign disaster information by
countries for the first time. HDTV telecon.
@Beijing @Tokushima @Tsukuba @GISTDA
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KIZUNA Experiments (3) Japan Aerospace
Exploration Agency
JAXA conducted these experiment in the operation phase.
Multicast to NECTEC (Thailand) E-mail Transmission USAT Transmission (NHK)
and ASTI (Philippines) (Xmas Mail from Space) (Disaster News)
○MBA for Southeast Asia is inspected ○First e-mail through the internet ○Evaluation of earth station
that normally functioned by multicast network via KIZUNA to 80 thousand transportability and operability which
transmission to NECTEC (Thailand) people. become necessary for the disaster news.
and ASTI (Philippines) from ○Confirmation of connection ○Need to refine the assembling.
Tsukuba,(Japan). seamlessly to the internet network via ○Confirmation of urgent satellite
○The space development activity in KIZUNA communication system. operation for disaster.
JAXA was introduced for NECTEC and ○Participant of the public with e-mail .
ASTI by high-speed data transmission. ○Promotion of KIZUNA to the public.
○This experiment was conducted with
CUHK (Hong Kong) on another day.
An example of card @Tokyo
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KIZUNA Experiments (4) Japan Aerospace
Exploration Agency
JAXA conducted these experiment in the operation phase.
E-Learning (Hyper-Mirror) E-learning Experiment (Mesh type)
(Osaka Univ.) (Tsukuba Univ, AIT and MMU)
○ The child of both sides between two ○Evaluation of mesh type communication
elementary schools took a class with system.
hyper mirror system. ○Evaluation of real time and two-way
○Transmission HDTV image of the class communication among multi-site.
by both schools. ○Evaluation of communication among
○To confirm that the KIZUNA speakers and students on multi-site.
communication network system is ○This e-learning was conducted on Feb. 9-
effective for the large-capacity / real- 10, 16-17, 23-24 (today) and 16-17 Mar.
time two-way communication which is
necessary for E-Learning in digital
divide area.
@Osaka @MMU
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Japan Aerospace
Exploration Agency
Scenes of Experiments on DVD
1. HDTV Transmission Experiment in Beijing
Olympics
2. Emergency Transmission Experiments
(participating in the Disaster Drill in Tokushima
Pref.)
3. Distance Education Experiment using
a Hyper Mirror System
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Japan Aerospace
Utilization of KIZUNA for Sentinel Asia System Exploration Agency
Disaster related information disseminate to the disaster “KIZUNA (WINDS)”
management agencies in the Asia – Pacific region by
using of the high speed data link of ”KIZUNA (WINDS).
Earth Observation Satellite
Website
Contents
High Speed Data Link
Satellite Image data （10Mbps -
Achieve Data Disaster 155Mbps）
Information
Earthquake Platform
Volcano Internet
Tsunami
Flood Wildfire
Sentinel Asia
Disaster Management Agencies in the Asia-Pacific region Central Server
Geo-Informatics and Space Technology Development Agency
（GISTDA）,Thailand
National Institute of Aeronautics and Space（LAPAN）
National Disaster Coordination Council（NDCC）, the Philippines
Indian Space Research Organization（ISRO), etc. 18
Emergency Communications Experiment Japan Aerospace
Exploration Agency
in Disaster Site with Geographical Survey Institute
In case of Large-scale Disaster, Emergency Air Photo
– Current Condition; To transport hard disk by land from Airfield to Geographical Survey Institute(GSI) in Japan.
– By using KIZUNA, the transmission time can be short, and its images would be distribute earlier. As a result, it is
easy to grasp the disaster situation.
– GSI would be considering the introduction of this accelerate operation system for Emergency Air Photo based on
this result.
Emergency Shooting Transmit High-Resolution Digital Air Photo
（250MB） in Series
KIZUNA
Promptly Furnish Disaster
Situation such as Air Photo,
Simplified Ortho Images
Several hours～
Half a Day
Large-scale Disaster Site
GSI Organizations
Airfield Concerned
Transport
19
Future Experimental Plan of KIZUNA (1) Japan Aerospace
Exploration Agency
2009 Basic Experiment Tentative Schedule
Note : This schedule should be adjusted. 20
Future Experimental Plan of KIZUNA (2) Japan Aerospace
Exploration Agency
2009 Application Experiment Tentative Schedule
Note : This schedule should be adjusted.
This experimental title is temporary translation.
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Contents
Japan Aerospace
Exploration Agency
1. Featuers of KIZUNA
2. KIZUNA Fruits in FY2008
and Development into FY2009
3. KIZUNA Experiments
4. Summary
22
Japan Aerospace
Summary
Exploration Agency
1. The KIZUNA was successfully launched,and it was
confirmed through various functional checkouts and tests
of the satellite that the KIZUNA system is available to
provide the high speed data link within the Asia-Pacific
region.
2. So many basic and application experiments using the
KIZUNA have been conducted so far, and those
experiments have achieved the expected results.
3. JAXA/NICT are continuously to develop the novel satellite
communications systems making use of its features, and it
is also considered that KIZUNA would be used with its
small user terminals in the GSI emergency system as well
as in Sentinel Asia system for the Asia-Pacific region
which is a wide area disaster prevention system.
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Japan Aerospace
Exploration Agency
Thank you for your attention
Please visit at JAXA website
http://www.jaxa.jp/projects/sat/winds/index_e.html
sawabe.masahiko@jaxa.jp
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