• DocumentCode
    2871537
  • Title

    Hybrid phase amplitude direction finding method

  • Author

    Orduyilmaz, Adnan ; Serin, Mahmut ; Yildirim, Alper ; Ceyhan, Kivanc ; Gurbuz, Ali Cafer

  • Author_Institution
    Tubitak Bilgem Iltaren, Ankara, Turkey
  • fYear
    2015
  • fDate
    16-19 May 2015
  • Firstpage
    109
  • Lastpage
    112
  • Abstract
    In this paper, hybrid monopulse phase-amplitude comparison method is presented. Design has been realized for broadband radar signals in real time in the digital environment. Multi-antenna array is used with a wide antenna pattern disposed on a plane in direction finding (DF) techniques with a traditional phase comparison method. With recommended method in the article, integrated amplitude and phase comparison method with fractured antennas´ placements is used for solution of ambiguity. It is too hard to determine phase differences by using amplitude differences coming from fractured antennas´s placements. This challenge is resolved by using FFT. For a particular incidence angle sector, analysis are performed with different antennas´ placement scenarios and different signal to noise ratio (SNR). Successful DF estimations are accomplished with recommended fractured, two antenna structure and hybrid phase-amplitude technique.
  • Keywords
    broadband antennas; fast Fourier transforms; radio direction-finding; DF estimations; FFT; SNR; broadband radar signals; digital environment; direction finding techniques; fractured antennas placements; hybrid monopulse phase-amplitude comparison method; hybrid phase amplitude direction finding method; incidence angle sector; integrated amplitude method; multi-antenna array; phase comparison method; phase differences; signal to noise ratio; wide antenna pattern; Antennas; Field programmable gate arrays; Maximum likelihood estimation; Passive radar; Radar tracking; Signal to noise ratio; amplitude comparison; direction finding; interferometer; phase difference;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Signal Processing and Communications Applications Conference (SIU), 2015 23th
  • Conference_Location
    Malatya
  • Type

    conf

  • DOI
    10.1109/SIU.2015.7130142
  • Filename
    7130142