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Single pass Doppler positioning for Search and Rescue satellite missionsThis paper describes the implementation of beacon location experiments involving the NASA Nimbus-6 and the Amateur Satellite Corporation (AMSAT) Oscar-6 and Oscar-7 spacecraft. The purpose of these experiments is to demonstrate the feasibility of determining the geographical location of a low power VHF 'distress beacon' via satellite. Doppler data collected during satellite passes is reduced in a mini-computer by means of a simple algorithm resulting in the simultaneous recovery of the unknown receiver coordinates and the unknown Doppler bias frequency. Results indicate point positioning to within a few kilometers - which is within the required accuracies for the positioning of downed aircraft for Search/Rescue missions.
Document ID
19770068334
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Schmid, P. E.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Vonbun, F. O.
(NASA Goddard Space Flight Center Greenbelt, Md., United States)
Lynn, J. J.
(Old Dominion Systems, Inc. Gaithersburg, Md., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1976
Subject Category
Aircraft Communications And Navigation
Meeting Information
Meeting: Position Location and Navigation Symposium
Location: San Diego, CA
Country: US
Start Date: November 1, 1976
End Date: November 3, 1976
Accession Number
77A51186
Distribution Limits
Public
Copyright
Other

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