Abstract
This paper analyses the image that one obtains by backprojecting synthetic aperture RADAR data collected on a flight-track with inflection points. The result is that one obtains artefacts that are of equal strength as the bona-fide part of the image. Furthermore, we obtain a weak normal form for operators associated to a fold/cusp canonical relation, which appears for our forward operator. Therefore this paper should be of use to researchers in different fields where such a structure arises.
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Ambartsoumian, G., Felea, R., Krishnan, V., Nolan, C., Quinto, T.: A new class of singular Fourier intgral operators in synthetic aperture radar imaging. J. Funct. Anal. 264(1), 246–269 (2013)
Felea, R.: Composition calculus of Fourier integral operators with fold and blowdown singularities. Commu. Partial Differ. Equ. 30, 17171740 (2005)
Felea, R., Greenleaf, A.: FIOs with open umbrellas and seismic inversion for cusp caustics. Math. Res. Lett. 17(5), 867–886 (2010)
Golubitsky, M., Guillemin, V.: Stable Mappings and Their Singularities. Springer-Verlag, New York (1973)
Greenleaf, A., Uhlmann, G.: Estimates for singular Radon transforms and pseudodifferential operators with singular symbols. J. Func. Anal. 89, 220232 (1990)
Greenleaf, A., Uhlman, G.: Compositions of some singular Fourier integral operators and estimates for restricted X-ray transforms. Ann. Inst. Fourier (Grenoble) 40(2), 443466 (1990)
Greenleaf, A., Uhlman, G.: Compositions of some singular Fourier integral operators and estimates for restricted X-ray transforms II. Duke Math. J. 64, 415444 (1991)
Hormander, L.: The Analysis of Linear Partial Differential Operators, vol. IV. Springer Verlag, New York (1983)
Krishnan, V.P., Quinto, E.T.: Microlocal aspects of bistatic synthetic aperture radar imaging. Inverse Probl. Imaging 5, 659–674 (2011)
Melrose, R., Uhlmann, G.: Lagrangian intersection and the Cauchy problem. Commun. Pure Appl. Math. 32(4), 483519 (1979)
Melrose, R., Taylor, M.: Near peak scattering and the corrected Kirchhoff approximation for a convex obstacle. Adv. Math. 55(3), 242315 (1985)
Milnor, J.: Morse theory, Annals of Mathematics Studies, vol. 51. Princeton University Press, Princeton (1963)
Nolan, C.: Scattering in the presence of fold caustics. SIAM J. Appl. Math. 61, 659672 (2000)
Nolan, C., Cheney, M.: Microlocal analysis of synthetic aperture radar imaging. J. Fourier Anal. Appl. 10(2), 133–148 (2004)
Acknowledgments
Both authors were supported by Raluca Felea’s Simons Foundation grant 209850.
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Communicated by Eric Todd Quinto.
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Felea, R., Nolan, C. Monostatic SAR with Fold/Cusp Singularities. J Fourier Anal Appl 21, 799–821 (2015). https://doi.org/10.1007/s00041-015-9387-0
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DOI: https://doi.org/10.1007/s00041-015-9387-0
Keywords
- Microlocal analysis
- Monostatic synthetic aperture radar (SAR) imaging
- Fourier integral operators
- Fold/cusp singularities