Keywords
atmospheric techniques, meteorological radar, radar cross-sections, radar theory, remote sensing by radar, spaceborne radar, wind
Abstract
Scatterometers are remote sensing radars designed to measure near-surface winds over the ocean. The difficulties of accommodating traditional fan-beam scatterometers on spacecraft has lead to the development of a scanning pencil-beam instrument known as SeaWinds. SeaWinds will be part of the Japanese Advanced Earth Observing Satellite II (ADEOS-II) to be launched in 1999. To analyze the performance of the SeaWinds design, a new expression for the measurement accuracy of a pencil-beam system is required. In this paper the authors derive a general expression for the backscatter measurement accuracy for a pencil-beam scatterometer which includes the effects of transmit signal modulation with simple power detection. Both separate and simultaneous signal+noise and noise-only measurements are considered. The utility of the new expression for scatterometer design tradeoffs is demonstrated using a simplified geometry. A separate paper, ibid., 1997, describes detailed tradeoffs made to develop the SeaWinds design.
Original Publication Citation
Long, D. G., and M. W. Spencer. "Radar Backscatter Measurement Accuracy for a Spaceborne Pencil-Beam Wind Scatterometer with Transmit Modulation." Geoscience and Remote Sensing, IEEE Transactions on 35.1 (1997): 12-14
BYU ScholarsArchive Citation
Long, David G. and Spencer, Michael W., "Radar backscatter measurement accuracy for a spaceborne pencil-beam wind scatterometer with transmit modulation" (1997). Faculty Publications. 673.
https://scholarsarchive.byu.edu/facpub/673
Document Type
Peer-Reviewed Article
Publication Date
1997-01-01
Permanent URL
http://hdl.lib.byu.edu/1877/1096
Publisher
IEEE
Language
English
College
Ira A. Fulton College of Engineering and Technology
Department
Electrical and Computer Engineering
Copyright Status
© 1997 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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