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Ranging performance of satellite laser altimetersDetailed expressions for the range and pulse width measurement accuracies are developed and used to evaluate the ranging performances of several satellite laser altimeters currently under development by NASA for launch during the next decade. The analysis includes the effects of the target surface characteristics, spacecraft pointing jitter, and waveform digitizer characteristics. The results show that ranging accuracy is critically dependent on the pointing accuracy and stability of the altimeter especially over high relief terrain where surface slopes are large. At typical orbital altitudes of several hundred kilometers, single-shot accuracies of a few centimeters can be achieved only when the pointing jitter is on the order of 10 microrad or less.
Document ID
19930035734
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Gardner, Chester S.
(Illinois Univ. Urbana, United States)
Date Acquired
August 15, 2013
Publication Date
September 1, 1992
Publication Information
Publication: IEEE Transactions on Geoscience and Remote Sensing
Volume: 30
Issue: 5
ISSN: 0196-2892
Subject Category
Spacecraft Instrumentation
Accession Number
93A19731
Funding Number(s)
CONTRACT_GRANT: NSG-5049
Distribution Limits
Public
Copyright
Other

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