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Record Details

Record 99 of 4735
The ELLIPSO (tm) system: Elliptical low orbits for mobile communications and other optimum system elements
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Author and Affiliation:
Castiel, David(Ellipsat Corp., Washington, DC, United States)
Abstract: On 5 Nov. 1990, Ellipsat filed with the FCC the first application to provide voice communication services via low earth orbiting (LEO) satellites. The proposed system, ELLIPSO, aims at achieving end-user costs comparable to those in the cellular industry. On 3 Jun. 1991 Ellipsat filed for the second complement of its system. Ellipsat was also the first company to propose combined position determination and mobile voice services via low-earth orbiting satellites. Ellipsat is still the only proponent of elliptical orbits for any commercial system in the United States. ELLIPSO uses a spectrum efficient combination of FDMA and CDMA techniques. Ellipsat's strategy is to tailor required capacity to user demand, reduce initial system costs and investment risks, and allow the provision of services at affordable end-user prices. ELLIPSO offers optimum features in all the components of its system, elliptical orbits, small satellites, integrated protocol and signalling system, integrated end-user electronics, novel marketing approach based on the cooperation with the tenets of mobile communications, end-user costs that are affordable, and a low risk approach as deployment is tailored to the growth of its customer base. The efficient design of the ELLIPSO constellation and system allows estimated end-user costs in the $.50 per minute range, five to six times less than any other system of comparable capability.
Publication Date: Sep 15, 1991
Document ID:
19920021686
(Acquired Nov 07, 1995)
Accession Number: 92N30930
Subject Category: COMMUNICATIONS AND RADAR
Document Type: Conference Paper
Publication Information: JPL, Proceedings of the Workshop on Advanced Network and Technology Concepts for Mobile, Micro, and Personal Communications; p 101-117
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: Ellipsat Corp.; Washington, DC, United States
Description: 17p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: CODE DIVISION MULTIPLE ACCESS; ELLIPTICAL ORBITS; FREQUENCY DIVISION MULTIPLE ACCESS; MOBILE COMMUNICATION SYSTEMS; SATELLITE COMMUNICATION; VOICE COMMUNICATION; COST REDUCTION; EARTH ORBITS
Imprint And Other Notes: In JPL, Proceedings of the Workshop on Advanced Network and Technology Concepts for Mobile, Micro, and Personal Communications p 101-117 (SEE N92-30923 21-32)
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