Location estimation of wideband sources with expectation maximization algorithm

Cekli S., Cekli E., Curpan H. A.

IEEE 15th Signal Processing and Communications Applications Conference, Eskişehir, Turkey, 11 - 13 June 2007, pp.640-641 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.1109/siu.2007.4298626
  • City: Eskişehir
  • Country: Turkey
  • Page Numbers: pp.640-641
  • Istanbul University Affiliated: Yes

Abstract

In this paper, maximum likelihood (ML) estimator is proposed for the wideband sources in the near-field of the antenna array. The ML solution is obtained in the frequency domain for ML estimation algorithm since the source signal is wideband signal and the corresponding ML solution can not be achieved in the time domain. The expectation mlx.mization (EM) algorithm is therefore suggested for the estimation of the location parameters since there is not closed form solutions for the corresponding maximum likelihood function. Moreover, simulation results of the suggested algorithm are illustrated to present the performance of the algorithm.