The problem of estimating the directions of arrival (DOAs) of signals, some of which may be perfectly correlated, is considered. A computationally efficient estimation algorithm which combines the ideas of spatial smoothing and array interpolation is derived. In one of its forms the proposed algorithm uses the root-MUSIC (root multiple signal classification) technique to compute the DOA estimates, thus avoiding the search procedure associated with the conventional MUSIC algorithm. The proposed technique can be applied to arbitrary array geometries and a general signal covariance matrix. The performance of the algorithm was evaluated by extensive simulations, and compared with the Cramer-Rao lower bound for the DOA estimates.<>


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Direction finding using spatial smoothing with interpolated arrays


    Contributors:


    Publication date :

    1992-04-01


    Size :

    1098660 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Multibaseline cross-track SAR interferometry using interpolated arrays

    Bordoni, F. / Lombardini, F. / Gini, F. et al. | IEEE | 2005



    Polarization Difference Smoothing for Direction Finding of Coherent Signals

    Jin He, / Shengli Jiang, / Juting Wang, et al. | IEEE | 2010


    WINDOW MOUNTABLE DIRECTION-FINDING ANTENNA ARRAYS

    JOHNSON TERRY | European Patent Office | 2025

    Free access