4 May 2011 The physics of vibrating scatterers in SAR imagery
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Abstract
Measurement times for synthetic aperture radar (SAR) image collection can take from the order of seconds to minutes and consequently the technique is subject to imaging artefacts due to target motion. For example, imaged moving targets can be displaced and unfocussed and similarly for vibrating targets. Current understanding of this phenomenon is somewhat esoteric however this paper puts forward and demonstrates a visual explanation via the physics of modulated scatterer SAR images in the Fourier domain. This novel approach has led to an imagery analyst aid which associates a distinctive signature to modulated scatterer artefacts in SAR imagery and to an associated filter.
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D. B. André, D. B. André, D. Blacknell, D. Blacknell, D. G. Muff, D. G. Muff, M. R. Nottingham, M. R. Nottingham, } "The physics of vibrating scatterers in SAR imagery", Proc. SPIE 8051, Algorithms for Synthetic Aperture Radar Imagery XVIII, 80510V (4 May 2011); doi: 10.1117/12.883845; https://doi.org/10.1117/12.883845
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