Systems Engineering and Electronics


Computationally efficient direction finding using polynomial rooting with reduced-order and real-valued computations

Fenggang Yan1,2,*, Yi Shen1, Ming Jin2, and Xiaolin Qiao2   

  1. 1. School of Information and Electrical Engineering, Harbin Institute of Technology, Harbin 150001, China;
    2. School of Astronautics, Harbin Institute of Technology at Weihai, Weihai 264209, China
  • Online:2016-08-24 Published:2010-01-03


The root multiple signal classification (root-MUSIC) algorithm is one of the most important techniques for direction of arrival (DOA) estimation. Using a uniform linear array (ULA) composed of M sensors, this method usually estimates Lsignal DOAs by finding roots that lie closest to the unit circle of a (2M−1)-order polynomial, where L