Title :
ScanSAR simulation and processing using ERS-1 data
Author :
Eldhuset, Knut ; Valand, Per Atle ; Desnos, Yves Louis ; Marchand, Jean-Luc
Author_Institution :
Norwegian Defence Res. Establ., Kjeller, Norway
Abstract :
This paper presents some results from an ESA study on scanSAR processing and simulation using the system parameters defined for ASAR (Advanced Synthetic Aperture Radar) which ESA plans for the ENVISAT mission. The study concentrates on selection of scanning and processing scheme to obtain image quality as good and uniform as possible. Methods for Doppler centroid estimation have been analyzed and assessed. Special attention has been devoted to image quality degradation using erroneous Doppler centroid estimates and if individual beam pointing errors are present. A scanSAR simulator and processor has been implemented and tested on real ERS-1 raw data.
Keywords :
geophysical signal processing; geophysical techniques; radar applications; radar imaging; remote sensing; remote sensing by radar; synthetic aperture radar; ASAR; Advanced Synthetic Aperture Radar; Doppler centroid estimation; ENVISAT; ERS-1 data; beam pointing error; erroneous Doppler centroid estimate; geophysical measurement technique; image processing; image quality; land surface terrain mapping; radar remote sensing; radar signal processing; scanSAR simulation; scanning; Azimuth; Degradation; Frequency; Image processing; Image quality; Layout; Radar detection; Space technology; Synthetic aperture radar; Testing;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1994. IGARSS '94. Surface and Atmospheric Remote Sensing: Technologies, Data Analysis and Interpretation., International
Print_ISBN :
0-7803-1497-2
DOI :
10.1109/IGARSS.1994.399380
