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The estimation of pointing angle and normalized surface scattering cross section from GEOS-3 radar altimeter measurements

Author
Brown, G. S.
Published
Aug 1, 1977.
Physical Description
1 electronic document
Additional Creators
Curry, W. J.
Online Version

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Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
The statistical error of the pointing angle estimation technique is determined as a function of the effective receiver signal to noise ratio. Other sources of error are addressed and evaluated with inadequate calibration being of major concern. The impact of pointing error on the computation of normalized surface scattering cross section (sigma) from radar and the waveform attitude induced altitude bias is considered and quantitative results are presented. Pointing angle and sigma processing algorithms are presented along with some initial data. The intensive mode clean vs. clutter AGC calibration problem is analytically resolved. The use clutter AGC data in the intensive mode is confirmed as the correct calibration set for the sigma computations.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19770024409.
Accession ID: 77N31353.
NASA-CR-141426.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15731320