title: A different approach to use narrowband super-resolution multiple signal classification algorithm on wideband sources.
abstract: There are varieties of wideband direction-of-arrival (DOA) estimation algorithms. Their structure comprises a number of narrowband ones, each performs in one frequency in a given bandwidth, and then different responses should be combined in a proper way to yield true DOAs. Hence, wideband algorithms are always complex and so non-real-time. This paper investigates a method to derive a flat response of narrowband multiple signal classification (MUSIC) [R. O. Schmidt, IEEE Trans. Antennas Propag., 34, 276-280 (1986)] algorithm in the whole frequencies of given band. Therefore, required conditions of applying narrowband algorithm on wideband impinging signals will be given through a concrete analysis. It could be found out that array sensor locations are able to compensate the frequency variations to reach a flat response of DOAs in a specified wideband frequency.
authors.affiliation: Department of Broadcast Engineering, IRIB University, Tehran 1779617165, Iran. m.asgari@iribu.com
authors.forename: Mohammad
authors.initials: M
authors.lastname: Asgari
authors.forename: Nasim Yahya
authors.initials: NY
authors.lastname: Soltani
authors.forename: Ali
authors.initials: A
authors.lastname: Riahi