NDLI: Radar backscatter measurement accuracy for a spaceborne pencil-beam wind scatterometer with transmit modulation (1997)

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Radar backscatter measurement accuracy for a spaceborne pencil-beam wind scatterometer with transmit modulation (1997)

Content Provider	CiteSeerX
Author	Long, David G. Spencer, Michael W.
Abstract	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 pencilbeam 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 we 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 [8] describes detailed tradeoffs made to develop the SeaWinds design. Index Terms—Scatterometry, SeaWinds, wind measurement. I.
File Format	PDF
Journal	IEEE Trans. Geosci. Remote Sensing
Language	English
Publisher Date	1997-01-01
Access Restriction	Open
Subject Keyword	Spaceborne Pencil-beam Wind Scatterometer Transmit Modulation Radar Backscatter Measurement Accuracy Seawinds Design New Expression Pencil-beam Scatterometer Backscatter Measurement Accuracy Simple Power Detection Simplified Geometry Near-surface Wind General Expression Abstract Scatterometers Scatterometer Design Tradeoff Pencilbeam Instrument Simultaneous Signal Noise Noise-only Measurement Index Term Scatterometry Wind Measurement Traditional Fan-beam Scatterometers Pencil-beam System Transmit Signal Modulation Separate Paper Measurement Accuracy
Content Type	Text
Resource Type	Article

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