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Internal calibration strategies for space-borne synthetic aperture radars with active phased array antennas | IEEE Conference Publication | IEEE Xplore

Internal calibration strategies for space-borne synthetic aperture radars with active phased array antennas


Abstract:

This paper proposes an analytical formulation of the instrumental errors in multilevel hierarchic SAR architecture equipped with active phased array antennas. The basis o...Show More

Abstract:

This paper proposes an analytical formulation of the instrumental errors in multilevel hierarchic SAR architecture equipped with active phased array antennas. The basis of the study is the derivation of the so called post-calibration errors, which remain as residual error contributions after the application of a dedicated internal calibration procedure. The limitations of the current internal calibration approaches for the-state-of-the-art space-borne SAR missions are analyzed and alternative internal global calibration strategies are proposed to reduce the impact of the post-calibration error. Numerical simulations of instrumental errors are presented to evaluate the different proposed calibration procedures.
Date of Conference: 24-29 July 2011
Date Added to IEEE Xplore: 20 October 2011
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Conference Location: Vancouver, BC, Canada

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