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Determination of spacecraft attitude using synthetic aperture radar dataA method has been developed for precise sensor platform attitude determination which exploits the availability of synthetic aperture radar (SAR) sensors on future planned NASA earth orbiting spacecraft. Using the ephemeris along with data on planet shape and rotation, the relative motion between sensor and target area and therefore the Doppler frequency shift in the returned echo data is determined. Equations have been developed that relate the Doppler shift to the antenna attitude. The method is tested by comparing attitude predictions from SEASAT SAR digital echo data with available conventionally determined SEASAT attitude information.
Document ID
19810028955
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Wu, C. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Curlander, J. C. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Di Cenzo, A. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1980
Subject Category
Spacecraft Instrumentation
Report/Patent Number
AIAA PAPER 80-1922
Meeting Information
Meeting: Sensor Systems for the 80''s Conference
Location: Colorado Springs, CO
Start Date: December 2, 1980
End Date: December 4, 1980
Accession Number
81A13359
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other

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