Title: The National Office for Integrated and Sustained Ocean Observing and Prediction htttp://www.ocean.us.net
1The National Office for Integrated and Sustained
Ocean Observing and Predictionhtttp//www.ocean.u
s.net
Update on the U.S. Department of Defense/U.S.
Navy/ Office of Naval Research Program to
Implement Advanced Telemetry From Oceanographic
Platforms
Stephen R. Piotrowicz, Ph.D. 14 October 2002
2Program Status
- Phase II Contracts Awarded March 2002
- NAL Research Data Unit System Development
- Omnet Data Delivery Serivices
- Distributing 100 L-Band Transceivers
- Web Solicitation for Potential Applications
- Objective is a Spectrum of Platforms,
Environments, and Data - Delivery Requirements
- Participants Selected in June
- Distribution of Conventional Data Units Began
in June - Distribution of GPS Capable Units Beginning in
October - Distributing 104 Iridium SIM Cards Utilizing
the Department of - Defense/Defense Information Systems Agency
Gateway in Hawaii
3Overview of Iridium Satellite LLC
- Purchased Iridium LLC for 25 Million
- Annual Operating Costs 85 Million (Original
System 1 Billion) - 3 Gateways
- Equipment Pricing - 500-1,500 (Original
System - 1,500 - 3,500) - Service Pricing/Minute - 1.00 - 1.50 (1 Rate
Globally) - Original System 2.00 - 7.00 in a 15x15
Matrix - Commercial Service Launch
- Voice 31 March 2001
- Data June 2001
- 3 Million per Month from DoD Contract (2 Year
5 One-Year Options) - Up to 20,000 Subscribers, Unlimited Airtime
- Government Handles Tail Charges, Connectivity
to Internet, - Subscriber Equipment Ordering, Billing,
Etc. - Satellite Network and Control Facility
Operated by Boeing
4Current Status of Iridium
- 66 Operational Satellites 11 in 6 Orbital
Planes - 12 In-orbit Spares At Least One in Each Plane
- 2 Ground Spares
- Full Constellation Life Minimum, mid-2010
Aerospace Corp. - Independent Study
- Gateways
- Tempe, Arizona Primary Gateway
- Fucino, Italy
- DoD Gateway in Hawaii Circuit Data and
Internet Upgrades - in Progress
- Gateways to be Added to Support Commercial
Demand - Satellite Network Operations Center in
Leesburg, Virginia - Back-Up Facility in Chandler, Arizona
5Current Status of Iridium
6Current Status of Iridium
7Current Status of Iridium
8Dial-Up Data
PSTN
ISP
- Direct-Dial Connection Between Mobile Application
and PSTN (Corporate/ISP) - AT Commands and RS232 Provide the Application
Interface to the Subscriber Device - User Throughputs Up To 2,800 bps (nominally 2,400
bps)
9Direct-Internet
Iridium Gateway
Internet
Internet Server
D900
- Direct Internet Provides a Complete Digital
Connection to the Internet - Iridium is the ISP - Reduced Session Set-Up Time and Improved
Grade-of-Service Over Dial-Up - Employs SmartConnectTM Features to Support
Connection Management - Compression
- Spoofing
- User Effective Throughput is Nominally 10,000 bps
10Short Burst Data Service
User Application
Iridium Gateway
Internet
SBM Network Equipment
D900
- Short Burst Data is an Efficient Packet-Based
Service. - Service is Planned to Support 1900 bytes in both
MO MT Directions - Pricing plans to be based on per byte usage
- Combination of Circuit Short Burst Data Results
in Cost Effective Usage Growth.
11Data Unit Phase I
12Data Unit Phase I
- 9500 Phone Converted to Data Module
- Vendor Selected and NRE Funded by Iridium
- Design Complete
- Serial, Power and Antenna Connector
- Dial-Up and Internet Data Services
- Billing in 6 Second Increments
- Cost of Production Units - 1,000 w/o GPS 1,200
w GPS - Available Now
- Quantity Subject to Available Inventory
- Service Cost - lt0.12/kbit
- Power - 20 J/kbyte
- Two-Way Communication
- Guaranteed Packet Delivery
13Data Unit Phase I
Weight 580 g (500 w/o GPS) Dimensions 9.5
L x 2.8 W x 1.5 D SIM Card Reader
Internal Operating Frequency 1616 - 1626.5
MHz Power 0.75W Average (0.6W w/o
GPS) Operating Temperature -30C/60C Duplexing
Method Time Division Duplex Multiplexing
Method TDMA/FDMA Link Margin (w/external
antenna) 12.5 dB average Data Rate 2400 bits
per second Interface Standard RS-232 (AT
commands)
14Data Unit Phase II Next Generation
- 9505 Based Product
- Leverage Current Handset Production
- Work with Celestica and Third Party Vendor to
Obtain Board Level product. - 30 Reduction in Physical Size as compared with
9500 - 15 Less Power Consumption during data calls
- Dial-up and PPP Internet Access Data Services
- Short Burst Data Capable
- Next Generation
15U. of Washington Glider
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17Dual Purpose Antenna Iridium and GPS
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