Near-field multistatic radar reconstruction with stretched-phase Fourier accelerated multistatic imaging

There exist few rapid reconstruction methods for applications that use multistatic radar for targets in the near field such as vehicle navigation and personnel screening. Fourier accelerated multistatic imaging (FAMI) is a method that combines the rapid reconstruction speed of Fourier-based imaging algorithms with the flexibility of algebraic algorithms that allow arbitrary radiation patterns and antenna placement. Many of these new applications image in the near field of the individual antennas of a multistatic array, however, FAMI contains approximations that require the target to be in the far field of each antenna. Stretched-phase FAMI (SP-FAMI) overcomes this limitation and allows imaging in the Fresnel region of the antennas so that targets may be very close to the array while retaining the computational benefits of Fourier reconstruction. As radar wavelengths decrease with a corresponding increase in resolution, SP-FAMI allows the imaging of nearby targets that would otherwise be too close for FAMI to image accurately.

[1]  M. Barkat,et al.  Near-field multiple source localization by passive sensor array , 1991 .

[2]  A. Sieber,et al.  Fast algorithm for a near-field synthetic aperture radar processor , 1994 .

[3]  A. Devaney,et al.  Diffraction tomography for multi-monostatic ground penetrating radar imaging , 1997 .

[4]  J. Fortuny.  An efficient 3-D near-field ISAR algorithm , 1998 .

[5]  L. Giubbolini.  A microwave imaging radar in the near field for anti-collision (MIRANDA) , 1999 .

[6]  Juan M. Lopez-Sanchez,et al.  3-D radar imaging using range migration techniques , 2000 .

[7]  Kung Yao,et al.  Maximum-likelihood source localization and unknown sensor location estimation for wideband signals in the near-field , 2002, IEEE Trans. Signal Process..

[8]  Lars M. H. Ulander,et al.  Synthetic-aperture radar processing using fast factorized back-projection , 2003 .

[9]  T. Eibert,et al.  Comparison and Application of Near-Field ISAR Imaging Techniques for Far-Field Radar Cross Section Determination , 2006, IEEE Transactions on Antennas and Propagation.

[10]  Thomas Hall,et al.  Near-field three-dimensional radar imaging techniques and applications. , 2010, Applied optics.

[11]  David R. Smith,et al.  Metamaterial apertures for coherent computational imaging on the physical layer. , 2013, Journal of the Optical Society of America. A, Optics, image science, and vision.

[12]  David R. Smith,et al.  Metamaterial Apertures for Computational Imaging , 2013, Science.

[13]  David R. Smith,et al.  Metamaterial microwave holographic imaging system. , 2014, Journal of the Optical Society of America. A, Optics, image science, and vision.

[14]  David R. Smith,et al.  Comprehensive simulation platform for a metamaterial imaging system. , 2015, Applied optics.

[15]  David R. Smith,et al.  Computational imaging using a mode-mixing cavity at microwave frequencies , 2015 .

[16]  David R. Smith,et al.  Software Calibration of a Frequency-Diverse, Multistatic, Computational Imaging System , 2016, IEEE Access.

[17]  David R. Smith,et al.  Frequency-diverse microwave imaging using planar Mills-Cross cavity apertures. , 2016, Optics express.

[18]  David R. Smith,et al.  Design and Simulation of a Frequency-Diverse Aperture for Imaging of Human-Scale Targets , 2016, IEEE Access.

[19]  David R. Smith,et al.  Spatially resolving antenna arrays using frequency diversity. , 2016, Journal of the Optical Society of America. A, Optics, image science, and vision.

[20]  David R. Smith,et al.  Multistatic microwave imaging with arrays of planar cavities , 2016 .

[21]  David R. Smith,et al.  Printed Aperiodic Cavity for Computational and Microwave Imaging , 2016, IEEE Microwave and Wireless Components Letters.

[22]  David R. Smith,et al.  Fourier Accelerated Multistatic Imaging: A Fast Reconstruction Algorithm for Multiple-Input-Multiple-Output Radar Imaging , 2017, IEEE Access.