4 May 2011 An algorithm for wide aperture 3D SAR imaging with measured data
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Abstract
We utilize eight circular passes of measured airborne X-Band radar data to form a novel reflectivity surface estimate. Our previous work demonstrated reflectivity surface estimation from narrow aperture multi-pass data and this work extends those results to wide apertures. Narrow aperture surface estimates are co-registered in the three spatial dimensions and combined non-coherently to form a wide-aperture data product. For the purpose of visually conveying the scene reflectivity content a surface is formed from the wide angle data product. The subject of this work is not on the optimality of the methods nor the global convexity of the cost functions. Instead, these results give us one of the first glimpses at measured wide angle three dimensional SAR image products and provide a qualitative benchmark against which to measure future wide angle three dimensional synthetic aperture radar autofocus and imaging algorithms.
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Forest Lee-Elkin, Lee Potter, "An algorithm for wide aperture 3D SAR imaging with measured data", Proc. SPIE 8051, Algorithms for Synthetic Aperture Radar Imagery XVIII, 80510A (4 May 2011); doi: 10.1117/12.883191; https://doi.org/10.1117/12.883191
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