Composite complex sinusoidal modeling for the estimation of directions and spectra of incident plane waves

We have already reported that composite complex sinusoidal modeling (CCSM) is effective for array signal processing, in the sense that highest bearing resolution was achieved by CCSM than by any other existing methods time. The directivity pattern obtained by CCSM has no side lobe and gives only lines indicating the directions and the powers of incident plane waves at a concerning frequency. We propose here an improved CCSM to achieve a much more bearing estimation.