Title :
Comparison of estimators of the mean radar reflectivity from a finite number of correlated samples
Author :
Fjørtoft, Roger ; Lopès, Armand
Author_Institution :
CESBIO, Toulouse, France
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 computationally efficient approximation of the optimal estimator is proposed
Keywords :
atmospheric techniques; backscatter; geophysical signal processing; geophysical techniques; radar cross-sections; radar imaging; radar theory; remote sensing by radar; speckle; synthetic aperture radar; terrain mapping; SAR; atmosphere; computationally efficient approximation; correlated sample; estimator; finite number; finite sample size; geophysical measurement technique; land surface; mean radar reflectivity; optimal estimator; radar imaging; radar remote sensing; speckle correlation; spectral properties; terrain mapping; Ambient intelligence; Doppler radar; Envelope detectors; Maximum likelihood estimation; Meteorological radar; Radar applications; Radar imaging; Reflectivity; Speckle; Synthetic aperture radar;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International
Conference_Location :
Hamburg
Print_ISBN :
0-7803-5207-6
DOI :
10.1109/IGARSS.1999.772015
