Potential applications of the ORBCOMM global messaging system to US military operations
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Authors
Coverdale, David R.
Subjects
ORBCOMM
Satellite Communication
Personal Communication Services
PCS
Low-Earth Orbit
LEO
DCAAS
ALOHA
OOTW
CSAR
CSEL
Satellite Communication
Personal Communication Services
PCS
Low-Earth Orbit
LEO
DCAAS
ALOHA
OOTW
CSAR
CSEL
Advisors
Moose, Paul H.
Boger, Dan C.
Date of Issue
1995-06
Date
June 1995
Publisher
Monterey, CA; Naval Postgraduate School
Language
en_US
Abstract
The author presents a detailed description of the components, architecture, links, and operations of the ORB COMM global messaging and position determination system. ORB COMM is the first commercial venture to offer worldwide personal communications service (PCS) using non-voice-non-geostationary (NVNG) low earth orbit (LEO) satellite technology. Link budget analyses of the system's satellite up and down links are presented. The author analyzes ORB COMM's proprietary multiple access scheme for random access channel interference and describes how the system's modified ALOHA protocol achieves a higher throughput than pure or slotted ALOHA based systems. Several commercial and DoD applications of the system are discussed, including beaconing, data exchange, tracking, and two way messaging. Specific DoD applications of ORBCOMM include combat sea-alr rescue (CSAR) and deployable communications networks for use in operations other than war (OOTW). With DoD taking. an active role as a cooperative partner, ORB COMM can satisfy the need for a low-cost, commercial space-based system to enhance US military global communications
Type
Thesis
Description
Series/Report No
Department
Organization
Command, Control, and Communications Academic Group
Identifiers
NPS Report Number
Sponsors
Funder
Format
80 p.
Citation
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.