Eigendecomposition-based techniques such as MUSIC and its variants constitute effective methods for determining the direction of arrival (DOA) estimates of narrowband sources. A new strategy which extends the MUSIC algorithm to higher order statistics (HOS) is proposed for estimation of the DOA, and the number of multiple narrowband incoherent and coherent non-Gaussian signals. The performance of the technique is compared with other recently suggested HOS-based methods.
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Durrani, T.S., Leyman, A.R.: `New algorithms for DOA estimation using higher order statistics', IEEE Int. Conf. Acoust. Speech and Sig. Proc., April 1993, Minneapolis, Minnesota, p. 596–600.
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19940900
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