Calibration and characterisation of spaceborne synthetic aperture radars (SAR)

Details Calibration and characterisation of spaceborne synthetic aperture radars (SAR) Calibration and characterisation of spaceborne synthetic aperture radars (SAR)

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997adspr..19.1415c&link_type=abstract

Advances in Space Research, Volume 19, Issue 9, p. 1415-1423.

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Applications of Synthetic Aperture Radar (SAR) data are many and varied. The emergence of SAR as a commercially viable commodity is also focusing needs to provide services to fulfil applications at affordable prices. This then drives the need to include only features in the system that are necessary and to arrive at designs which are cost efficient to produce. The purposes of Calibration are two fold; (1) conversion of the Radar output units into predetermined reference units (2) the measurement of dynamic system characteristics which fluctuate throughout the life of the system to enable correction of the final product for such features. The first is largely application driven whereas the second is dominated by the system implementation. It is necessary that the spaceborne radar design is not too difficult to realise but this must be balanced by the burden that a simple design may impose upon the ground processing. Definitions of Calibration and Characterisation are provided and discussions of the needs in terms of applications and demands presented. The aspects of implementation for different Radar design families are presented with examples from current programmes.

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