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


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

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

  • Cilt numarası: 44 Konu: 6
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.asr.2009.04.031
  • Dergi Adı: ADVANCES IN SPACE RESEARCH
  • Sayfa Sayıları: ss.653-662

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.