NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
A GPS coverage modelThe results of several case studies using the Global Positioning System coverage model developed at Ohio University are summarized. Presented are results pertaining to outage area, outage dynamics, and availability. Input parameters to the model include the satellite orbit data, service area of interest, geometry requirements, and horizon and antenna mask angles. It is shown for precision-landing Category 1 requirements that the planned GPS 21 Primary Satellite Constellation produces significant outage area and unavailability. It is also shown that a decrease in the user equivalent range error dramatically decreases outage area and improves the service availability.
Document ID
19940022789
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Skidmore, Trent A. (Ohio Univ. Athens, OH, United States)
Date Acquired
September 6, 2013
Publication Date
February 1, 1994
Publication Information
Publication: NASA. Langley Research Center, FAA(NASA Joint University Program for Air Transportation Research, 1992-1993
Subject Category
Aircraft Communications And Navigation
Meeting Information
Meeting: Institute of Navigation 1992 National Technical Meeting
Location: Washington, DC
Country: United States
Start Date: June 29, 1992
End Date: July 1, 1992
Accession Number
94N27292
Funding Number(s)
CONTRACT_GRANT: DTRS57-87-C-00006
CONTRACT_GRANT: NGR-36-009-017
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

IDRelationTitle19940021775Collected WorksSelected topics in robotics for space exploration
No Preview Available