Accession Number : ADA618058


Title :   SIRE: A MIMO Radar for Landmine/IED Detection


Descriptive Note : Conference paper


Corporate Author : HOWARD UNIV WASHINGTON DC


Personal Author(s) : Ojowu, Jr, Ode ; Wu, Yue ; Li, Jian ; Nguyen, Lam


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a618058.pdf


Report Date : 30 Apr 2013


Pagination or Media Count : 10


Abstract : In this paper, we present the Synchronous Impulse Reconstruction Radar (SIRE) Ultra-wideband (UWB) radar designed by the Army Research Lab (ARL) for landmine and improvised explosive device (IED) detection as a 2 by 16 MIMO radar (with collocated antennas). Its improvement over its SIMO counterpart in terms of beampattern/cross range resolution are discussed and demonstrated using simulated data herein. The limitations of this radar for Radio Frequency Interference (RFI) suppression are also discussed in this paper. A relaxation method (RELAX) combined with averaging of multiple realizations of the measured data is presented for RFI suppression; results show no noticeable target signature distortion after suppression. In this paper, the back-projection (delay and sum) data independent method is used for generating SAR images. A side-lobe minimization technique called recursive side-lobe minimization (RSM) is also discussed for reducing side-lobes in this data independent approach. We introduce a data-dependent sparsity based spectral estimation technique called Sparse Learning via Iterative Minimization (SLIM) as well as a data-dependent CLEAN approach for generating SAR images for the SIRE radar. These data-adaptive techniques show improvement in side-lobe reduction and resolution for simulated data for the SIRE radar.


Descriptors :   *GROUND PENETRATING RADAR , *IMAGE RECONSTRUCTION , *LAND MINES , *TARGET DETECTION , ANTENNA APERTURES , BROADBAND , COMPUTERIZED SIMULATION , IMPROVISED EXPLOSIVE DEVICES , LOW FREQUENCY , MULTIPLE TARGETS , PERFORMANCE(ENGINEERING) , RADAR EQUIPMENT , RADAR IMAGES , RADIOFREQUENCY INTERFERENCE , SIDELOBES , SIGNAL PROCESSING , TARGET SIGNATURES


Subject Categories : Land Mine Warfare
      Active & Passive Radar Detection & Equipment


Distribution Statement : APPROVED FOR PUBLIC RELEASE