24 August 2000 SAR wavefront reconstruction using motion-compensated phase history (polar format) data and DPCA-based GMTI
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Abstract
This paper address the problem of processing an X-band SAR database that was originally intended for processing via a polar format imaging algorithm. In our approach, we use the approximation-free SAR wavefront reconstruction. For this, the measured and motion compensated phase history (polar format) data are processed in a multi-dimensional digital signal processing algorithm that yields alias-free slow-time samples. The resultant database is used for wavefront image formation. The X-band SAR system also provides a two channel along-track monopulse database. The alias-free monopulse SAR data are used in a coherent signal subspace algorithm for Ground Moving Target Indication (GMTI). Results are provided.
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Mehrdad Soumekh, Mehrdad Soumekh, Steven W. Worrell, Steven W. Worrell, Edmund G. Zelnio, Edmund G. Zelnio, Brett L. Keaffaber, Brett L. Keaffaber, "SAR wavefront reconstruction using motion-compensated phase history (polar format) data and DPCA-based GMTI", Proc. SPIE 4053, Algorithms for Synthetic Aperture Radar Imagery VII, (24 August 2000); doi: 10.1117/12.396384; https://doi.org/10.1117/12.396384
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