Calibration error model for multichannel spaceborne SAR systems based on Digital Beamforming

Author

Bordoni, Federica ; Laskowski, P. ; Younis, Marwan ; Krieger, Gerhard

Author_Institution

Microwaves & Radar Inst., German Aerosp. Center (DLR), Wessling, Germany

fYear

2013

fDate

9-11 Oct. 2013

Firstpage

184

Lastpage

187

Abstract

A new generation of spaceborne Synthetic Aperture Radar (SAR) systems based on multiple transmit/receive digital channels and provided with Digital Beamforming (DBF) capability is forthcoming. Whereas the technological feasibility and performance capability of these new SAR systems has been proved by a large number of studies in the last years, the identification and verification of an adequate calibration strategy is still required. In this paper a model of residual calibration error in multichannel spaceborne SAR systems based on DBF is provided with the aim to support the calibration performance prediction, the optimum design of calibration methods and the testing for scenarios in which sufficient real data are not available.

Keywords

airborne radar; array signal processing; calibration; radar signal processing; spaceborne radar; synthetic aperture radar; calibration error model; digital beamforming; multichannel spaceborne SAR systems; multiple receive digital channels; multiple transmit digital channels; optimum calibration design methods; performance capability; spaceborne synthetic aperture radar systems; technological feasibility; Array signal processing; Azimuth; Calibration; Instruments; Remote sensing; Spaceborne radar; Synthetic aperture radar; Calibration; Digital Beamforming (DBF); Multichannel Synthetic Aperture Radar (SAR);

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference (EuRAD), 2013 European

Conference_Location

Nuremberg

Type

conf

Filename

6689144