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- W2013071611 abstract "Tromso Satellite Station (TSS) is the Norwegian national receiving station for ERS-1 SAR data. The TSS Fast Delivery (FD) SAR processor was upgraded during spring 1994 so that the whole processing chain will now be performed in power rather than in voltage. This new FD SAR product from TSS needs absolute calibration, and a calibration constant is therefore estimated. First, a TSS Power-processed ERS-1 SAR image was used. This image covers the ESA transponders in Flevoland. The integration method was used to estimate the backscattered power from the 3 transponders. The Earth ellipsoid, local incidence angle, antenna pattern, range-spread loss, pixel size and RCS were also taken into account in the calculation. The result was a calibration constant of 53.51 dB. An other method is to compare the backscatter from an ESA processed PRI product and a TSS Power-processed FD product acquired at the same place and time. Areas were extracted from two such SAR images, and the pixel values averaged in power. The known calibration constant for the PRI product was used in the comparison of the image products. The calibration constant for the TSS FD product was then found to be 54.20 dB. This is close to the result from using the ESA transponders." @default.
- W2013071611 created "2016-06-24" @default.
- W2013071611 creator A5066522438 @default.
- W2013071611 date "1994-12-21" @default.
- W2013071611 modified "2023-09-23" @default.
- W2013071611 title "Absolute calibration of the fast-delivery SAR product processed at Tromso satellite station" @default.
- W2013071611 doi "https://doi.org/10.1117/12.197555" @default.
- W2013071611 hasPublicationYear "1994" @default.
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