SAR wavefront reconstruction using motion-compensated phase history (polar format) data and DPCA-based GMTI

Mehrdad Soumekh; Steven W. Worrell; Edmund G. Zelnio; Brett L. Keaffaber

doi:10.1117/12.396384

24 August 2000 SAR wavefront reconstruction using motion-compensated phase history (polar format) data and DPCA-based GMTI

Mehrdad Soumekh, Steven W. Worrell, Edmund G. Zelnio, Brett L. Keaffaber

Author Affiliations +

Proceedings Volume 4053, Algorithms for Synthetic Aperture Radar Imagery VII; (2000) https://doi.org/10.1117/12.396384
Event: AeroSense 2000, 2000, Orlando, FL, United States

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.

Citation Download Citation

Mehrdad Soumekh, Steven W. Worrell, Edmund G. Zelnio, and 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); https://doi.org/10.1117/12.396384

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