• DocumentCode
    3249284
  • Title

    Cramer-Rao Lower Bound for DOA Estimation Using Vector and Higher-Order Sensor Arrays

  • Author

    Lai, Hung ; Bell, Kristine

  • Author_Institution
    Lockheed Martin, Arlington
  • fYear
    2007
  • fDate
    4-7 Nov. 2007
  • Firstpage
    1262
  • Lastpage
    1266
  • Abstract
    The Cramer-Rao lower bound for estimating the azimuth and elevation angles of multiple planewave sources using a line array of general nth-order sensors is derived, generalizing the results of Nehorai and Paldi (1994) [1] for vector (first order) sensors. An analytical framework using spherical harmonics is used to derive the bound and the MVDR estimator for the higher order sensor array. Theoretical and simulation results for both a single higher-order sensor and a vertical line array are presented.
  • Keywords
    array signal processing; direction-of-arrival estimation; vectors; Cramer-Rao lower bound; DOA estimation; higher-order sensor array; multiple planewave sources; spherical harmonics; Acoustic measurements; Acoustic sensors; Azimuth; Direction of arrival estimation; Harmonic analysis; Multiple signal classification; Pressure measurement; Sensor arrays; Underwater acoustics; Underwater tracking;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Signals, Systems and Computers, 2007. ACSSC 2007. Conference Record of the Forty-First Asilomar Conference on
  • Conference_Location
    Pacific Grove, CA
  • ISSN
    1058-6393
  • Print_ISBN
    978-1-4244-2109-1
  • Electronic_ISBN
    1058-6393
  • Type

    conf

  • DOI
    10.1109/ACSSC.2007.4487428
  • Filename
    4487428
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3249284