Doppler synthetic aperture radar imaging

Ling Wang; Birsen Yazici

doi:10.1117/12.883850

4 May 2011 Doppler synthetic aperture radar imaging

Ling Wang, Birsen Yazici

Proceedings Volume 8051, Algorithms for Synthetic Aperture Radar Imagery XVIII; 80510F (2011) https://doi.org/10.1117/12.883850
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

We consider synthetic aperture radar system using ultra-narrowband continuous waveforms, which we refer to as Doppler Synthetic Aperture Radar (DSAR). We present a novel image formation method for bi-static DSAR. Our method first correlates the received signal with a scaled or frequency-shifted version of the transmitted signal over a finite time window, and then uses microlocal analysis to reconstruct the scene by a filtered-backprojection of the correlated signals. Our approach can be used under non-ideal imaging scenarios such as arbitrary flight trajectories and non-flat topography. Furthermore, it is an analytic reconstruction technique which can be made computationally efficient. We present numerical experiments to demonstrate the performance of the proposed method.

Citation Download Citation

Ling Wang and Birsen Yazici "Doppler synthetic aperture radar imaging", Proc. SPIE 8051, Algorithms for Synthetic Aperture Radar Imagery XVIII, 80510F (4 May 2011); https://doi.org/10.1117/12.883850

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