%0 Journal Article
%T Beam-space Root-MUSIC for direction finding of wide-band sources<br>宽带方位估计的波束域Root-MUSIC算法
%A Zhi Wanjun
%A Yan Shenggang
%A Li Zhishun
%A <br>智婉君
%A 严胜刚
%A 李志舜
%J 电子与信息学报
%D 2002
%I 
%X The realization of high resolution algorithm has been paid more attention in recent years. This paper gives the model of wide-band beam-space direction finding problem and studies the Root-MUSIC algorithm. The roots in the unit circle of the beam-space Root-MUSIC are divided into two parts, one is corresponding to the true direction, and the other is not related to the source direction. Sub-array model is used here to form beams to focus the root corresponding to the true direction in a reduced order polynomial. This process reduced the computation burden. Simulation results in various beams have shown that the beams with wider main-band and lower side-band have better estimation and resolution performance, and proved the effectiveness of the wide-band beam-space reduced order Root-MUSIC.
%K Wide-band
%K Direction finding
%K Beam-space
%K High resolution<br>宽带
%K 方位估计
%K 波束域
%K Root－MUSIC算法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=56C7BEF16692CF14&yid=C3ACC247184A22C1&vid=B91E8C6D6FE990DB&iid=94C357A881DFC066&sid=0636354D8CF77519&eid=421C41B8FD4D3EBA&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=1&reference_num=3