A note on "A fast high-resolution method for bearing estimation in shallow ocean"

  • Authors:

  • Yougen Xu;Zhiwen Liu

  • Affiliations:

  • School of Information and Electronics, Beijing Institute of Technology, Beijing, People's Republic of China 100081;School of Information and Electronics, Beijing Institute of Technology, Beijing, People's Republic of China 100081

  • Venue:
  • Multidimensional Systems and Signal Processing
  • Year:
  • 2011

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Abstract

In the referenced paper [by Jin, Huang, Zhang, and Hou, Multidimensional Systems and Signal Processing, 20(4): 397---406, 2009], a rank-reduction based direction finding algorithm called Rayleigh MUSIC (R-MUSIC) is proposed to deal with the multimode nature of the acoustic propagation in the shallow ocean. However, when a linear array is utilized, R-MUSIC degrades severely for sources located in the vicinity of the array broadside. In this note, a measure is given to overcome this drawback.