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      A new technique for direction of arrival estimation for ionospheric multipath channels

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      Author
      Guldogan, M. B.
      Arıkan, Orhan
      Arikan, F.
      Date
      2009
      Source Title
      Advances in Space Research
      Print ISSN
      0273-1177
      Publisher
      ELSEVIER
      Volume
      44
      Issue
      6
      Pages
      653 - 662
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      A novel array signal processing technique is proposed to estimate HF channel parameters including number of paths, their respective direction of arrivals (DOA), delays, Doppler shifts and amplitudes. The proposed technique utilizes the Cross Ambiguity Function (CAF), hence, called as the CAF-DF technique. The CAF-DF technique iteratively processes the array output data and provides reliable estimates for DOA, delay, Doppler shift and amplitude corresponding to each impinging HF propagated wave onto an antenna array. Obtained results for both real and simulated data at different signal to noise ratio (SNR) values indicate the superior performance of the proposed technique over the well known MUltiple SIgnal Classification (MUSIC) technique.
      Keywords
      Array signal processing
      Cross Ambiguity Function (CAF)
      Direction of arrival (DOA)
      Doppler shift
      Ionosphere
      MUSIC
      Time delay
      Permalink
      http://hdl.handle.net/11693/22624
      Published Version (Please cite this version)
      http://dx.doi.org/10.1016/j.asr.2009.04.031
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      • Department of Electrical and Electronics Engineering 3524
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