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

Creative Commons License

Guldogan M. B., Arikan O., ARIKAN F.

ADVANCES IN SPACE RESEARCH, cilt.44, sa.6, ss.653-662, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 44 Sayı: 6
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.asr.2009.04.031
  • Dergi Adı: ADVANCES IN SPACE RESEARCH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.653-662
  • Hacettepe Üniversitesi Adresli: Evet

Özet

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. (C) 2009 COSPAR. Published by Elsevier Ltd. All rights reserved.