ALOS PALSAR Calibration and Validation Results from Sweden

Eriksson, Leif, 1970 (author): Chalmers tekniska högskola,Chalmers University of Technology

Sandberg, Gustaf, 1982 (author): Chalmers tekniska högskola,Chalmers University of Technology

Ulander, Lars, 1962 (author): Chalmers tekniska högskola,Chalmers University of Technology

Smith Jonforsen, Gary, 1972 (author): Chalmers tekniska högskola,Chalmers University of Technology

Hallberg, Björn, 1973 (author): Chalmers tekniska högskola,Chalmers University of Technology

Folkesson, Klas, 1976 (author): Chalmers tekniska högskola,Chalmers University of Technology

Fransson, J.E.S. (author)

Magnusson, M. (author)

Olsson, H. (author)

Gustavsson, A. (author)

Flood, B. (author)

(creator_code:org_t)

2007
2007
English.
In: IEEE Geoscience and Remote Sensing Symposium (IGARSS 2007), Barcelona, Spain, July 23-27, 2007. ; DOI: 10.1109/IGARSS.2007.4423115, s. 1589-1592

Abstract Subject headings

In 2006 calibration activities for ALOS PALSAR wereconducted in Sweden. Four five-metre trihedral corner reflectorsand three smaller dihedral reflectors were deployed and operatedduring eight months. 23 PALSAR scenes were acquired over thecalibration site allowing an evaluation of the quality and temporalstability of the data. Results show that the co-polarized datahave been stable during the whole calibration period with variationsin the trihedral responses lower than 0.7 dB. The measuredresolution in azimuth was 4.4 m and in slant range 4.7 m forsingle polarization images and 9.5 m for polarimetric data. Forthe cross-polarized data large variations in the dihedral responseswere found. It is assumed that this is caused by a larger sensitivityto pointing errors. For the polarimetric data, estimation ofFaraday rotation gave values ranging from 0.1º to 3º.

By the author/editor: Eriksson, Leif, ...; Sandberg, Gustaf ...; Ulander, Lars, 1 ...; Smith Jonforsen, ...; Hallberg, Björn, ...; Folkesson, Klas, ...; show more...; Fransson, J.E.S.; Magnusson, M.; Olsson, H.; Gustavsson, A.; Flood, B.; show less...

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