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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