Title
Analysis of sea spikes in radar sea clutter data
Abstract
In this paper three sets of high-resolution, coherent, and polarimetric radar sea clutter data are analyzed and compared with radar sea clutter models. The nature of the data allows a thorough analysis of the power, polarization and velocity of the sea clutter. It is shown that these quantities, especially the velocity, are good measures of many physical properties of the ocean surface. Furthermore, it is shown that these physical properties match well with the sea clutter models. Sea clutter is found to consist of two components, a diffuse background, characterized by low values of backscattered power, HH/VV polarization ratio and Doppler velocity, and a number of spiking events, which possess higher power, polarization ratio and velocity. The background is reasonably well modeled by tilt-modulated Bragg scattering, whereas the spikes may be associated with the scattering on steepened and/or breaking waves. Moreover, it is shown that the influence of microbreakers has to be taken into account to explain the relatively high polarization ratio. A breaking wave origin for the spikes is supported in two ways. First, by a detailed analysis of the temporal behavior of individual spike backscatter properties, and second, by a statistical analysis of the entire population of spikes.
Year
DOI
Venue
2006
10.1109/TGRS.2005.862497
Geoscience and Remote Sensing, IEEE Transactions
Keywords
Field
DocType
backscatter,ocean waves,oceanographic techniques,radar clutter,radar polarimetry,remote sensing by radar,statistical analysis,Doppler velocity,breaking waves,coherent radar data,ocean surface,ocean waves,polarimetric radar,radar sea clutter data,sea clutter polarization,sea clutter power,sea clutter velocity,sea spike analysis,spike backscatter,spiking events,statistical analysis,tilt-modulated Bragg scattering,Breaking waves,Doppler,ocean waves,polarimetry,radar,radar sea clutter,sea spikes
Radar,Wind wave,Population,Breaking wave,Polarimetry,Clutter,Backscatter,Remote sensing,Polarization (waves),Mathematics
Journal
Volume
Issue
ISSN
44
4
0196-2892
Citations 
PageRank 
References 
14
1.70
4
Authors
4
Name
Order
Citations
PageRank
Melief, H.W.1141.70
Harm Greidanus2456.38
P. van Genderen3354.86
Peter Hoogeboom415020.85