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- W687574 abstract "Synthetic Aperture Radar (SAR) is a well- proved instrument for remote sensing. Multi-aperture SAR- systems allow for digital beamforming on receive that will enable a wide swath SAR with high azimuth resolution. In classic multi-aperture systems, stringent requirements are imposed on sensor velocity and PRF to ensure uniform sampling of the synthetic aperture. This paper shows that an unambiguous reconstruction of the SAR signal is also possible in case of such a non-optimum PRF. For this, an innovative reconstruction algorithm is derived, which en- ables a recovery of the unambiguous Doppler spectrum also in case of a non-uniform sampling of the synthetic aperture. Further, the influence of perturbations on the reconstruc- tion is presented and general system aspects are discussed." @default.
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- W687574 date "2005-01-01" @default.
- W687574 modified "2023-09-26" @default.
- W687574 title "Digital Beamforming for High Resolution Wide Swath SAR Imaging" @default.
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