Title :
Aberration free SAR raw data processing via transformed grid predeformation
Author :
Franceschetti, G. ; Lanari, R. ; Marzouk, E.S.
Author_Institution :
IRECE, CNR, Napoli, Italy
Abstract :
The authors show the necessity to consider the space-variant nature of the synthetic aperture radar (SAR) system transfer function to correctly process SAR raw data. An extremely efficient procedure to compensate this space-variant effect is provided. It is mainly based on the evaluation of the two-dimensional SAR raw data spectrum on a deformed grid by using a non conventional fast Fourier transform (FFT) algorithm. Experiments confirming theoretical results are presented
Keywords :
environmental science computing; geophysical techniques; geophysics computing; image processing; remote sensing by radar; synthetic aperture radar; telecommunications computing; transfer functions; aberration free SAR raw data processing; fast Fourier transform algorithm; space-variant nature; synthetic aperture radar; transfer function; transformed grid predeformation; two-dimensional SAR raw data spectrum; Azimuth; Data processing; Fast Fourier transforms; Filtering; Fourier transforms; IEEE members; Layout; Lighting; Synthetic aperture radar; Transfer functions;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1993. IGARSS '93. Better Understanding of Earth Environment., International
Conference_Location :
Tokyo
Print_ISBN :
0-7803-1240-6
DOI :
10.1109/IGARSS.1993.322306
