Title :
X-SAR data quality-the results of two missions
Author :
Eineder, Michael ; Bamler, Richard ; Breit, Helko ; Steinbrecher, Ulrich
Author_Institution :
Deutsche Forschungsanstalt fur Luft- und Raumfaht, Wessling, Germany
Abstract :
In April and October 1994 X-SAR was flown on a Space Shuttle as a component of the 3 frequency Space Radar Laboratory SIR-C/X-SAR. While both missions were scheduled to investigate seasonal changes, 3 days of the October mission were optimized for SAR interferometry. At DLR all X-SAR data are analyzed and processed to precision images. During the analysis raw data parameters like chirp phase and amplitude stability, raw data statistics, system noise and Doppler centroid frequency are investigated. The paper summarizes and compares those parameters of both missions. During the second mission interferograms were generated from X-SAR data. The paper presents the effects of Doppler centroid frequency variations on the suitability of X-SAR data for two-pass interferometry
Keywords :
geophysical techniques; radar imaging; remote sensing by radar; spaceborne radar; synthetic aperture radar; AD 1994; Doppler centroid frequency; SAR imaging; SAR interferometry; SIR-C; Space Radar Laboratory; X-SAR; X-band; amplitude stability; chirp phase; data quality; geophysical measurement technique; land surface; microwave radar SHF; radar imaging; radar remote sensing; seasonal change; synthetic aperture radar; terrain mapping; two-pass interferometry; Chirp; Data analysis; Frequency; Image analysis; Interferometry; Laboratories; Radar imaging; Space shuttles; Spaceborne radar; Stability analysis;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1995. IGARSS '95. 'Quantitative Remote Sensing for Science and Applications', International
Conference_Location :
Firenze
Print_ISBN :
0-7803-2567-2
DOI :
10.1109/IGARSS.1995.521769
