1 Ocak 2021 Dergi makalesi Açık Erişim

Guner, Kani K.; Gulum, Taylan O.; Erkmen, Burcu

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{
  "@context": "https://schema.org/", 
  "@id": 236212, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "Turkish Naval Forces Headquarters, Ankara, Turkey", 
      "name": "Guner, Kani K."
    }, 
    {
      "@type": "Person", 
      "name": "Gulum, Taylan O."
    }, 
    {
      "@type": "Person", 
      "affiliation": "Yildiz Tech Univ, Dept Elect & Commun Engn, TR-34220 Istanbul, Turkey", 
      "name": "Erkmen, Burcu"
    }
  ], 
  "datePublished": "2021-01-01", 
  "description": "Low probability of intercept (LPI) radars using linear frequency-modulated continuous waveforms (LFMCWs) is rapidly proliferating in the military domain and posing a serious challenge to conventional electronic support receivers (ESRs). In this article, we provide a practical approach that can be used in digital ESR systems for real-time LFMCW radar signal detection and parameter extraction under challenging SNR levels. We proposed a modified version of the Wigner-Ville distribution (WVD), namely, short-time Wigner distribution (STWD), postprocessing steps, e.g., column-based thresholding of STWD combined with the Hough transform (HT), and a field-programmable gate array (FPGA) design as an embedded solution with low computational complexity. The performance of the proposed system is tested with MATLAB and hardware simulations using a signal database generated with different signal-to-noise ratio (SNR) levels. The system is then embedded into a Virtex-7 FPGA where the performance evaluations showed satisfactory detection results down to -6-dB SNR level, and parameter extraction results down to -8-dB SNR level.", 
  "headline": "FPGA-Based Wigner-Hough Transform System for Detection and Parameter Extraction of LPI Radar LFMCW Signals", 
  "identifier": 236212, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "FPGA-Based Wigner-Hough Transform System for Detection and Parameter Extraction of LPI Radar LFMCW Signals", 
  "url": "https://aperta.ulakbim.gov.tr/record/236212"
}