10 December 1999 Multifrequency polarimetric microwave scatterometer based on a vector network analyzer
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Abstract
In order to test a multi-frequency polarimetric scatterometer based on a Vector Network Analyzer, calibration measurements have been performed over point targets. Two trihedral corner reflectors with different dimensions have been employed. The radar cross sections have been measured at different frequency bands (L, C and X) and for different look angles between 23 degree(s) and 50 degree(s). Satisfactory results have been obtained in all three bands, however in the L-band the electromagnetic smog, due to mobile phones and airport radars, caused some difficulties in the extinction of the radiometric information. Other calibration tests have been planned before using the instrument as a ground-truth data acquisition device on the test-sites envisaged for the spaceborne SRTM and ENVISAT SAR missions.
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Angelo Canio D'Alessio, Angelo Canio D'Alessio, Francesco Posa, Francesco Posa, Vincenzo Sabatelli, Vincenzo Sabatelli, Domenico Casarano, Domenico Casarano, } "Multifrequency polarimetric microwave scatterometer based on a vector network analyzer", Proc. SPIE 3869, SAR Image Analysis, Modeling, and Techniques II, (10 December 1999); doi: 10.1117/12.373152; https://doi.org/10.1117/12.373152
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