• DocumentCode
    2028791
  • Title

    Maximum likelihood estimation for array processing in colored noise

  • Author

    Nagesha, Venkatesh ; Kay, Steven

  • Author_Institution
    Dept. of Electr. Eng., Rhode Island Univ., Kingston, RI, USA
  • Volume
    4
  • fYear
    1993
  • fDate
    27-30 April 1993
  • Firstpage
    240
  • Abstract
    The problem of direction of arrival estimation of multiple sources in noise with unknown covariance is considered. The noise is modeled as a spatial autoregressive process with unknown parameters. An approximate maximum likelihood estimator (MLE) of the signal and noise parameters is derived. It requires numerical maximization of a compressed likelihood function over the unknown arrival angles. Analytical expressions for the MLEs of the signal covariance and the autoregressive (AR) parameters are given.<>
  • Keywords
    array signal processing; maximum likelihood estimation; noise; parameter estimation; DOA estimation; array processing; colored noise; compressed likelihood function; direction of arrival estimation; maximum likelihood estimator; multiple sources; signal covariance; spatial autoregressive process;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Acoustics, Speech, and Signal Processing, 1993. ICASSP-93., 1993 IEEE International Conference on
  • Conference_Location
    Minneapolis, MN, USA
  • ISSN
    1520-6149
  • Print_ISBN
    0-7803-7402-9
  • Type

    conf

  • DOI
    10.1109/ICASSP.1993.319639
  • Filename
    319639
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2028791