Determination of ocean wave heights from synthetic aperture radar imagery
A calculation is presented for the cross-correlation of the radar images obtained by processing the same signal data over different portions of the chirp spectrum bandwidth as a function of the center frequency spacings for these portions. This is shown to be proportional to the square of the produc...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19770057662 2023-05-15T17:31:50+02:00 Determination of ocean wave heights from synthetic aperture radar imagery Jain, A. Unclassified, Unlimited, Publicly available Aug 1, 1977 http://ntrs.nasa.gov/search.jsp?R=19770057662 unknown http://ntrs.nasa.gov/search.jsp?R=19770057662 Accession ID: 77A40514 Copyright Other Sources 48 Applied Physics; 13; Aug. 197 1977 ftnasantrs 2012-02-15T13:07:44Z A calculation is presented for the cross-correlation of the radar images obtained by processing the same signal data over different portions of the chirp spectrum bandwidth as a function of the center frequency spacings for these portions. This is shown to be proportional to the square of the product of the characteristic function for ocean wave heights and the pupil function describing the chirp spectrum bandwidth used in the processing. Measurements of this function for ocean wave imagery over the coast of Alaska, the North Atlantic, and Monterey Bay, California, and correlation with the significant wave heights reported from ground truth data indicate that the synthetic aperture radar instrument can be used for providing wave height information in addition to the ocean wave imagery. Other/Unknown Material North Atlantic Alaska NASA Technical Reports Server (NTRS) |
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NASA Technical Reports Server (NTRS) |
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ftnasantrs |
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unknown |
topic |
48 |
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48 Jain, A. Determination of ocean wave heights from synthetic aperture radar imagery |
topic_facet |
48 |
description |
A calculation is presented for the cross-correlation of the radar images obtained by processing the same signal data over different portions of the chirp spectrum bandwidth as a function of the center frequency spacings for these portions. This is shown to be proportional to the square of the product of the characteristic function for ocean wave heights and the pupil function describing the chirp spectrum bandwidth used in the processing. Measurements of this function for ocean wave imagery over the coast of Alaska, the North Atlantic, and Monterey Bay, California, and correlation with the significant wave heights reported from ground truth data indicate that the synthetic aperture radar instrument can be used for providing wave height information in addition to the ocean wave imagery. |
format |
Other/Unknown Material |
author |
Jain, A. |
author_facet |
Jain, A. |
author_sort |
Jain, A. |
title |
Determination of ocean wave heights from synthetic aperture radar imagery |
title_short |
Determination of ocean wave heights from synthetic aperture radar imagery |
title_full |
Determination of ocean wave heights from synthetic aperture radar imagery |
title_fullStr |
Determination of ocean wave heights from synthetic aperture radar imagery |
title_full_unstemmed |
Determination of ocean wave heights from synthetic aperture radar imagery |
title_sort |
determination of ocean wave heights from synthetic aperture radar imagery |
publishDate |
1977 |
url |
http://ntrs.nasa.gov/search.jsp?R=19770057662 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
North Atlantic Alaska |
genre_facet |
North Atlantic Alaska |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19770057662 Accession ID: 77A40514 |
op_rights |
Copyright |
_version_ |
1766129628948201472 |