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Author:

Zuo, Weiliang (Zuo, Weiliang.) | Xin, Jingmin (Xin, Jingmin.) (Scholars:辛景民) | Zheng, Nanning (Zheng, Nanning.) | Sano, Akira (Sano, Akira.)

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EI CPCI-S Scopus

Abstract:

In this paper, we consider the problem of estimating the directions-of-arrival (DOAs) and ranges of multiple near-field narrowband signals impinging on a symmetric uniform linear array (ULA) in nonuniform noise in practical applications. By forming a Toeplitz-like correlation matrix from the anti-diagonal elements of the array covariance matrix to convert the nonuniform noise to a uniform one, a new subspace-based localization method is proposed, where the null space is obtained through eigendecomposition of the resultant Toeplitz-like matrix, and the MUSIC method is used to estimate the location parameters, while a new pairing scheme is presented as well. Additionally, an oblique projector based alternating iteration is presented to improve the estimation accuracy of the location parameters, where the "saturation behavior" encountered in most of localization methods is solved effectively. Furthermore, the Cramer-Rao lower bound (CRB) for the near-field signals in unknown nonuniform noise is also derived explicitly. Finally, the effectiveness of the proposed method is verified through numerical examples.

Keyword:

Near-field nonuniform noise oblique projector source localization statistical analysis uniform linear array

Author Community:

  • [ 1 ] [Zuo, Weiliang; Xin, Jingmin; Zheng, Nanning] Xi An Jiao Tong Univ, Inst Artificial Intelligence & Robot, Xian 710049, Peoples R China
  • [ 2 ] [Zuo, Weiliang; Xin, Jingmin; Zheng, Nanning] Xi An Jiao Tong Univ, Natl Engn Lab Visual Informat Proc & Applicat, Xian 710049, Peoples R China
  • [ 3 ] [Sano, Akira] Keio Univ, Dept Syst Design Engn, Yokohama, Kanagawa 2238522, Japan
  • [ 4 ] [Zuo, Weiliang]Xi An Jiao Tong Univ, Inst Artificial Intelligence & Robot, Xian 710049, Peoples R China
  • [ 5 ] [Xin, Jingmin]Xi An Jiao Tong Univ, Inst Artificial Intelligence & Robot, Xian 710049, Peoples R China
  • [ 6 ] [Zheng, Nanning]Xi An Jiao Tong Univ, Inst Artificial Intelligence & Robot, Xian 710049, Peoples R China
  • [ 7 ] [Zuo, Weiliang]Xi An Jiao Tong Univ, Natl Engn Lab Visual Informat Proc & Applicat, Xian 710049, Peoples R China
  • [ 8 ] [Xin, Jingmin]Xi An Jiao Tong Univ, Natl Engn Lab Visual Informat Proc & Applicat, Xian 710049, Peoples R China
  • [ 9 ] [Zheng, Nanning]Xi An Jiao Tong Univ, Natl Engn Lab Visual Informat Proc & Applicat, Xian 710049, Peoples R China
  • [ 10 ] [Sano, Akira]Keio Univ, Dept Syst Design Engn, Yokohama, Kanagawa 2238522, Japan

Reprint Author's Address:

  • Xi An Jiao Tong Univ, Inst Artificial Intelligence & Robot, Xian 710049, Peoples R China.; Zuo, WL (reprint author), Xi An Jiao Tong Univ, Natl Engn Lab Visual Informat Proc & Applicat, Xian 710049, Peoples R China.

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Source :

2018 IEEE 10TH SENSOR ARRAY AND MULTICHANNEL SIGNAL PROCESSING WORKSHOP (SAM)

ISSN: 1551-2282

Year: 2018

Page: 247-251

Language: English

Cited Count:

WoS CC Cited Count: 2

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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