Title :
An approximate analytical method for correcting distortion in synthetic-aperture-radar ocean wave spectral peaks
Author :
Rufenach, C. ; Johnsen, Harald ; Hogda, K.A.
Author_Institution :
Cooperative Inst. for Res. Sci., Colorado Univ., Boulder, CO
fDate :
3/1/1995 12:00:00 AM
Abstract :
Ocean spectral peaks extracted from synthetic aperture radar (SAR) imagery exhibit a wavenumber rotation and shift relative to the true peaks due to attenuation of the high azimuth wavenumbers. The authors develop an approximate analytical model allowing a correction to the rotation and shift of SAR spectral peaks. This model maybe useful for spectral peak correction when R/V ⩽60 s whereas; for R/V>60 s, a portion of the wave images are strongly nonlinear for which this model is not valid
Keywords :
geophysical signal processing; ocean waves; oceanographic techniques; radar applications; radar imaging; remote sensing; remote sensing by radar; synthetic aperture radar; SAR imagery; approximate analytical method; approximate analytical model; correcting distortion; correction; measurement technique; ocean wave; radar imaging; radar remote sensing; sea surface; shift; spectral peak; synthetic aperture radar; wavenumber rotation; Attenuation; Azimuth; Data mining; Nonlinear distortion; Ocean waves; Optical attenuators; Sea surface; Space vehicles; Surface waves; Synthetic aperture radar;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
