DocumentCode :
3690894
Title :
ALOS-2 preliminary calibration assessment
Author :
M. Azcueta;M. Mariotti d´Alessandro;T. Zajc;N. Grunfeld;M. Thibeault
Author_Institution :
CONAE, Avenida Paseo Coló
fYear :
2015
fDate :
7/1/2015 12:00:00 AM
Firstpage :
4117
Lastpage :
4120
Abstract :
ALOS-2 satellite has been successfully launched by JAXA on May 24th 2014, it is equipped with an L-Band (PALSAR-2) fully polarimetric SAR. Many improvements have been made with respect to the former ALOS satellite: the exploitation of a dual receiving antenna allows to broaden the imaged swath whereas spotlight mode ensures a very high resolution on a specific location. The revisit time has been lowered from 46 to 14 days and the possibility to provide both left and right looking capability ensures a fast coverage in case of emergencies. The features of the ALOS-2 SAR system are designed to provide monitoring of vegetation (deforestation, agricultural areas), topographic changes (landslides, earthquakes) and several kind of disasters (volcanoes´ eruptions, oil spills). The work here presented shows the preliminary calibration assessment of the radar images of ALOS-2. In particular the polarimetric calibration has been analyzed together with the achievable IRF; furthermore, interferometric analyses have also been carried out to assess RFI filtering effect on inter-ferometric phase.
Keywords :
"Calibration","Signal to noise ratio","Azimuth","Estimation","Faraday effect","Coherence","Accuracy"
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2015 IEEE International
ISSN :
2153-6996
Electronic_ISBN :
2153-7003
Type :
conf
DOI :
10.1109/IGARSS.2015.7326731
Filename :
7326731
Link To Document :
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