Direction Finding with Uniform Circular Arrays via Phase Mode Excitation and Beamspace Root-music

نویسنده

  • Cherian P. Mathews
چکیده

Beamspace Root-MUSIC is a computationally efficient, beamspace implementation of Root-MUSIC developed recently for use in conjunction with a uniform linear array (ULA). Employing B real-valued beams having all but B-1 nulls in common, the major computations in Beamspace Root-MUSIC are a BxB real-valued eigenvalue decomposition (EVD) and the rooting of a polynomial of order B-1. Recently, Beamspace Root-MUSIC was adapted for use in conjunction with a uniform circular array (UCA) employing the interpolated array concept of Friedlander. We here develop an alternative means of using Beamspace Root-MUSIC with a UCA based on the concept of phase mode excitation.

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تاریخ انتشار 2004