Bob BruningaUS Naval Academy
Small Satellite Program410-293-6417
Sponsor: US Naval Academy
UNCLASS
UNCLASS
DoD Space Experiments Review Board (SERB)Nov 2006
USNA-0203 Space Communications International Experiment
Network Classroom Experience
2006 DoD SERB 204/21/23
Description: • ISS attached or Free-flyer
– Multichannel VHF / UHF transponders– Multimodes: Voice, Telemetry,Video, Image, Data, Msgs
• Ground Stations:– Internet-linked Global Volunteer network– Off-the-shelf, low-cost ($100 to $200) transceivers– Downloadable software defined sound-card modems– Open-ended experimental bandwidth
Complementary Experiments: • ODTML – Ocean Data• UHF RFI Mitigation• MIDN – Human physiology Radiation Detector
Objective:– Education of future Naval Officers in Space Programs and Technology– Low cost 1200/9600 baud telemetry bus for STP Experiments– Experimental UHF transponders for DOD & student education/training
SCIENCE (USNA-0203)Experiment Concept
Previous Priority:
•43 of 43: 2005 DoD SERB
!
OR
2006 DoD SERB 304/21/23
Experiment Funding:
SCIENCE (USNA-0203)Technology & Development
Major Instrument or Equipment:• ODTML• UHF RFI Mitigation Receiver• Multiple UHF transponders• Multiple modes (voice, data, TDMA FDMA)• Supports additional experiments (1200/9600 bd)
Instrument or Equipment Operation:• Educational Experiments/Communication
• Science data from attached experiments
• Remote Sensor Data Relay
Hardware Status:• Technology is Mature• Technology is Space proven on PCSATS• CDR: Spring 2007• Flight Ready: Spring 2008
!
Prior FY06 FY07 FY080 10k 20k 20k0 10k 20k 20k
2006 DoD SERB 404/21/23
SCIENCE (USNA-0203)Military Relevance
Military Needs:• Support additional STP experiments (1200/9600 baud links)• ODTML, MIDN, UHF RFI Mitigation Receiver• Education of Midshipmen and Space Cadre in Space Applications
• DOD Schools: Service Academies (4)Graduate Institutions (3)ROTC Units (550 Schools)
• DOD Comms Cadre: Civil Air Patrol (1800 units)Military Affiliate Radio Stations (8000)US Coast Guard Auxiliaries (33,000)
Documentation: USSpaceCom Long Range Plan, p77-79
Ocean Buoys w/ RF Terminals
Ocean Buoys w/ RF Terminals
GROUNDSTATION
2006 DoD SERB 504/21/23
Experiment / Flight Data:• Attached payload or Free-flyer• Apogee: 400 to 800 km• Perigee: 400 to 800 km• Inclination: 20 to 98 deg (lower if higher)• Physical Data: 0.25m3, 25 kg, nominal 50 W• Shuttle/ISS Required: [No]: Acceptable: [Yes]• Experiment Retrieval Required: [No]• Repetitive/incremental step flights: [No]
Requested STP Services• Launch Services
• Launch Integration
SCIENCE (USNA-0203)Flight Requirements
Need for Spaceflight• ODTML and UHF RFI coverage• Communications Orbit for Global coverage and range
!
2006 DoD SERB 604/21/23
Data Application Plan
• Real-time data collection and distribution by existing internet linked system
• No cost Operations by volunteer ground stations and other schools and universities
• Transparent data relay, collection, distribution. Independent of system operation
• Only sender and receiver of data need to collaborate
• WEB Browser access to all data
SCIENCE (USNA-0203)Data Application Plan
!
2006 DoD SERB 704/21/23
UFO RFI Mitigation ReceiverPsatUSNA-0601
2006 DoD SERB 804/21/23
ODTML MissionPsatUSNA-0601
Ocean Buoys w/ RF Terminals
Ocean Buoys w/ RF Terminals
GROUND
STATION
ODTML
2006 DoD SERB04/21/23
Global Internet Linked Ground Stations
All downlinks available live on web via Participating internet linked Ground Stations
www.ariss.net pcsat.aprs.org
SCIENCE
USNA-0203
2006 DoD SERB 1004/21/23
Space User Baseline PCSAT validates our links
Vandegriff
SCIENCE
USNA-0203
PCSAT2 User Plot 18 Apr 06
See www.ariss.net
2006 DoD SERB 1104/21/23
SCIENCE (USNA-0203)Potential Experimental Users
SCIENCE is a low cost educational transponder supporting not only ODTML, MIDN and other experiments but also University and School Experiments.
Background
The University channels can potentially draw from over 30,000 experimenters for easy assessment of loading and scaling issues.
Not only the sensors and users exist, but the global Internet collection and distribution system also exists from PCSAT1 & 2.
2006 DoD SERB 1204/21/23
SCIENCE (USNA-0203)Typical User Downlink Access
Google for “USNA Buoy” Select USNA-1This data is LIVE
WB4APR-9
S.C.I.E.N.C.E TRANSPONDERSSCIENCE
USNA-0203
2006 DoD SERB 1404/21/23
Digital Transponder
Telemetry system has 1200/9600 baud available
•STP Experiments can interface to serial ports here
•PCsat
SCIENCE
USNA-0203
2006 DoD SERB 1504/21/23
Previous Experiments with Manned Space
Future: S.C.I.E.N.C.E
ARISS
SCIENCE
USNA-0203
2006 DoD SERB 1604/21/23
Outreach ObjectivesSCIENCE
USNA-0203
2006 DoD SERB 1704/21/23
NASA Interest
NASA is invested in ARISS/Educational and Outreach objectives
SCIENCE
USNA-0203
2006 DoD SERB 1804/21/23
ISS Crew using ARISS
Data & Voice
250 contacts in 24 hrs
SCIENCE
USNA-0203
2006 DoD SERB 1904/21/23
Multimode Capabilities
Video, Image, Telemetry, Data, Experimental Modes, Low Bandwidth high user multiplexing
Here’s where we fit in.
SCIENCE
USNA-0203
2006 DoD SERB 2004/21/23
DOD Synergy with Educational Experimenters
Rome Air Development Center
PCsat Data Experiment in F-16 Aircraft
•Typical Low Cost Experiment
SCIENCE (USNA-0203)
20+ Simultaneous Users in 3 KHz
Solves number 1 ARISS problem: Uplink CONTENTION!
•User station is simply free software and Laptop with soundcard connected to any UHF/VHF transceiver
SCIENCE
USNA-0203
2006 DoD SERB 2204/21/23
PSK-31 Narrowband
Just 3 Khz can support almost 30 users (6 shown)
Audio Spectrogram
<One innovative user!
<-3 users<-Strong user
SCIENCE
USNA-0203
2006 DoD SERB 2304/21/23
Live-Direct Video/Imaging
“Joey, let me send you a picture!”
“Here’s what we see out the window”
SCIENCE
USNA-0203
2006 DoD SERB 2404/21/23
Minimum School Station and Experiments
OR
SCIENCE
USNA-0203
OR
2006 DoD SERB 2504/21/23
Maximum School StationSCIENCE
USNA-0203
2006 DoD SERB 2604/21/23
Questions?
SCIENCE
USNA-0203
Top Related