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Internal calibration strategies for space-borne synthetic aperture radars with active phased array antennas
Makhoul Varona, Eduardo; Broquetas Ibars, Antoni; Closa Domínguez, Josep M.; Saameno, Paula
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció
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.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Radar
Synthetic aperture radar
Radar d'obertura sintètica
info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
IEEE
         

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