Real polynomial form of music for uniform linear array

This paper presents real polynomial form of multiple signal characterization (MUSIC) with uniform linear array (ULA). Firstly, the proposed method can reduce the computational burden of spectral music by taking the place of a large number of search points by several real roots of polynomial. Secondly, to transform Root-MUSIC algorithm into polynomial with real coefficients, a higher order Root-MUSIC whose variable is only defined on the unit upper semicircle is presented. Furthermore, this paper also improves the results obtained by J. Selva in 2005.