A 2-bit and 3-bit metamaterial absorber-based compressive reflector antenna for high sensing capacity imaging

This paper describes a new coded sensing system used for imaging metallic objects in its near-field region. The presented system is composed of a compressive reflector antenna (CRA) coated with metamaterial absorbers (MMAs), in order to generate spatial and spectral codes in the imaging domain. The codes are designed to reduce the mutual information between the successive measurements, which results in a higher sensing capacity of the system. The performance of the proposed MMA-based CRA is compared to that of the traditional reflector antenna (TRA) without MMAs. Numerical examples for imaging PEC targets in the near-field of the coded system are presented. The results show that both sensing capacity and imaging performance of the MMA-based CRAs is enhanced when compared to that of the TRA.

[1]  Ali Molaei,et al.  Consensus-based imaging using ADMM for a Compressive Reflector Antenna , 2015, 2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.

[2]  Carey M. Rappaport,et al.  SAR IMAGING OF SUICIDE BOMBERS WEARING CONCEALED EXPLOSIVE THREATS , 2012 .

[3]  Ali Molaei,et al.  Norm-1 Regularized Consensus-Based ADMM for Imaging With a Compressive Antenna , 2017, IEEE Antennas and Wireless Propagation Letters.

[4]  Kamal Sarabandi,et al.  Refocusing Through Building Walls Using Synthetic Aperture Radar , 2008, IEEE Transactions on Geoscience and Remote Sensing.

[5]  J. A. Martinez-Lorenzo,et al.  A compressed sensing approach for detection of explosive threats at standoff distances using a Passive Array of Scatters , 2012, 2012 IEEE Conference on Technologies for Homeland Security (HST).

[6]  Willie J Padilla,et al.  Metamaterial Electromagnetic Wave Absorbers , 2012, Advanced materials.

[7]  Ali Molaei,et al.  Interferometric sounding using a Compressive Reflector Antenna , 2016, 2016 10th European Conference on Antennas and Propagation (EuCAP).

[8]  Thomas E. Hall,et al.  Three-dimensional millimeter-wave imaging for concealed weapon detection , 2001 .

[9]  K. Bredies,et al.  Linear Convergence of Iterative Soft-Thresholding , 2007, 0709.1598.

[10]  Lorenz-Peter Schmidt,et al.  Near field mm-wave imaging with multistatic sparse 2D-arrays , 2009, 2009 European Radar Conference (EuRAD).

[11]  Fernando Las Heras Andres,et al.  SAR PROCESSING FOR PROFILE RECONSTRUCTION AND CHARACTERIZATION OF DIELECTRIC OBJECTS ON THE HUMAN BODY SURFACE , 2013 .

[12]  Georgios B. Giannakis,et al.  Consensus-based distributed linear support vector machines , 2010, IPSN '10.

[13]  Emiliano Dall'Anese,et al.  Fast Consensus by the Alternating Direction Multipliers Method , 2011, IEEE Transactions on Signal Processing.

[14]  Fernando Las Heras Andres,et al.  On the Use of Improved Imaging Techniques for the Development of a Multistatic Three-Dimensional Millimeter-Wave Portal for Personnel Screening , 2013 .

[15]  Carey M. Rappaport,et al.  Experimental results for standoff detection of concealed body-worn explosives using millimeter-wave radar and limited view ISAR processing , 2009, 2009 IEEE Conference on Technologies for Homeland Security.

[16]  M. Degroot.  Reaching a Consensus , 1974 .

[17]  C Rappaport,et al.  Wave Scattering by Dielectric and Lossy Materials Using the Modified Equivalent Current Approximation (MECA) , 2010, IEEE Transactions on Antennas and Propagation.

[18]  Stephen P. Boyd,et al.  Distributed Optimization and Statistical Learning via the Alternating Direction Method of Multipliers , 2011, Found. Trends Mach. Learn..

[19]  Brendan N. Lyons,et al.  Reflect-array based mm-wave people screening system , 2013, Optics/Photonics in Security and Defence.

[20]  João M. F. Xavier,et al.  D-ADMM: A Communication-Efficient Distributed Algorithm for Separable Optimization , 2012, IEEE Transactions on Signal Processing.

[21]  João M. F. Xavier,et al.  Distributed Basis Pursuit , 2010, IEEE Transactions on Signal Processing.

[22]  Ali Molaei,et al.  Active imaging using a metamaterial-based compressive reflector antenna , 2016, 2016 IEEE International Symposium on Antennas and Propagation (APSURSI).

[23]  Andrew G. Rinzler,et al.  FAR-INFRARED GAPS IN SINGLE-WALL CARBON NANOTUBES , 1999 .

[24]  Georgios B. Giannakis,et al.  Consensus-Based Distributed Support Vector Machines , 2010, J. Mach. Learn. Res..

[25]  Marc Teboulle,et al.  A Fast Iterative Shrinkage-Thresholding Algorithm for Linear Inverse Problems , 2009, SIAM J. Imaging Sci..

[26]  William Blackwell,et al.  A Single-Transceiver Compressive Reflector Antenna for High-Sensing-Capacity Imaging , 2016, IEEE Antennas and Wireless Propagation Letters.

[27]  David Tse,et al.  Fundamentals of Wireless Communication , 2005 .