NDLI: High speed two way data communications used in the Texas Automated Buoy System (TABS)

Content Provider	IEEE Xplore Digital Library
Author	Walpert, J.N. Guinasso Jr., N.L. Lee III, L.L.
Copyright Year	2002
Description	Author affiliation: Geochem. & Environ. Res. Group, Texas A&M Univ., TX, USA (Walpert, J.N.; Guinasso, N.L., Jr.; Lee, L.L., III)
Abstract	The goal of obtaining cost effective, reliable, two-way data communications with remote instrumentation has always been a major technical challenge in the successful operation of a remote ocean observing system. Typical low-cost telemetry methods such as line-of-sight radio and cellular telephones are limited in their coverage and are not suitable for remote locations, such as offshore moored buoy platforms. Power limitations, space availability and high volumes of data, have made this goal even more difficult to achieve. Satellites have typically provided low data rates at relatively high costs compared to other telemetry methods available to near shore deployment applications. Most satellite telephone systems were designed around the needs of the trucking or rail industry, and have typically relied on either mechanically steered or large tunable mast antennas as well as high current electronics to achieve two-way data communications through geo-synchronous satellites. In 1991 a consortium comprised of twelve aerospace and telecommunication companies was formed to provide worldwide satellite telecommunications service to business, government and the public. Their purpose was to provide cost effective satellite voice and data communications to areas, which were under-serviced. They named the consortium Globalstar/spl trade/ and over the next 10 years put into orbit, 48 LEO (Low-Earth-Orbit) satellites. Although primarily developed for voice communications in remote areas, Globalstar/spl trade/ Satellite Communications System offers full duplex, two way, data communication through the Qualcomm GSP-1620 Packet Data Modem, at uplink and downlink speeds of 9600 bps. In January 2002, the Geochemical and Environmental Research Group (GERG) of Texas A&M University (TAMU), deployed a TABS II buoy in the Gulf of Mexico, at the Flower Garden Bank Marine Sanctuary equipped with the new modem. The small, robust antenna, low power requirements and high speed data telemetry have so far proven to be reliable and a cost effective means to achieve two way data transmission of moderate to large data volumes.
Starting Page	402
Ending Page	407
File Size	664552
Page Count	6
File Format	PDF
ISBN	0780375343
DOI	10.1109/OCEANS.2002.1193305
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Data communication Satellite broadcasting Costs Artificial satellites Telemetry Telephony Low earth orbit satellites Modems Instruments Oceans
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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