Abstract/Details

Estimation of sea surface topography with interferometric radar


2000 2000

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Abstract (summary)

This dissertation presents the design and initial experimental results of a second generation FOcused Phased Array Imaging Radar (FOPAIR-II) demonstrating its capability to measure areas on the order of 20 meters x 20 meters with 0.375 meter range resolution and 1° beamwidth. An analysis of the error budget for the given geometry is presented, yielding a worst case height bias of 4.5 cm and an expression for determination of the uncertainty given signal-to-noise ratio and the temporal lag between interferometer measurements. The processing algorithm is shown and a method for distortion removal is described based on basic assumptions of the properties of the ocean surface over a time average.

Comparison of significant wave height measurements with the in-situ sensors shows a correlation of 0.92, with a slope of 0.97 and an intercept of −0.001 meters. Absolute height measurement comparison reveals a correlation between the radar estimated absolute height and a nearby tide gauge of 0.94, with a slope of 1.60 and an intercept of 0.75 meters.

Indexing (details)


Subject
Electrical engineering;
Remote sensing
Classification
0544: Electrical engineering
0799: Remote sensing
Identifier / keyword
Applied sciences; Interferometric; Radar; Remote sensing; Sea surface; Wave height
Title
Estimation of sea surface topography with interferometric radar
Author
Eshbaugh, James Vernon
Number of pages
83
Publication year
2000
Degree date
2000
School code
0118
Source
DAI-B 61/07, Dissertation Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
9780599844421, 0599844426
Advisor
Frasier, Stephen J.
University/institution
University of Massachusetts Amherst
University location
United States -- Massachusetts
Degree
Ph.D.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
9978494
ProQuest document ID
304605397
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/304605397
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