Title :
Estimation of the mean radar reflectivity from a finite number of correlated samples
Author :
Fjortoft, Roger ; Lopés, Armand
Author_Institution :
Norwegian Comput. Center, Oslo, Norway
fDate :
1/1/2001 12:00:00 AM
Abstract :
The authors compare estimators of the mean radar reflectivity on images with different spectral properties. By working on complex data rather than detected images, they can take the speckle correlation into account and thus obtain more accurate estimates. A robust and computationally efficient approximation of the optimal estimator is proposed
Keywords :
backscatter; geophysical techniques; oceanographic techniques; radar cross-sections; remote sensing by radar; synthetic aperture radar; terrain mapping; SAR; backscatter; computationally efficient approximation; correlated samples; finite number; geophysical measurement technique; land surface; mean radar reflectivity; ocean; optimal estimator; radar remote sensing; radar scattering; sea surface; speckle correlation; spectral properties; synthetic aperture radar; terrain mapping; Arithmetic; Doppler radar; Envelope detectors; Maximum likelihood estimation; Meteorological radar; Radar detection; Radar imaging; Reflectivity; Speckle; Synthetic aperture radar;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
