Localization of coherent signals without source number knowledge in unknown spatially correlated Gaussian noise

Cheng Qian; Lei Huang; Yuhang Xiao; H. C. So

doi:10.1016/j.sigpro.2014.12.005

Localization of coherent signals without source number knowledge in unknown spatially correlated Gaussian noise

Cheng Qian, Lei Huang, Yuhang Xiao, H. C. So

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

A new direction-of-arrival estimator for coherent signals in spatially correlated noise is devised in this paper. By constructing a set of fourth-order cumulant based Toeplitz matrices, the coherent signals can be decorrelated. Moreover, by utilizing the joint diagonalization structure of these Toeplitz matrices, a new cost function that does not require any a priori information of the source number is developed. Numerical examples are provided to demonstrate the effectiveness of the proposed approach.

Original language	English (US)
Pages (from-to)	170-178
Number of pages	9
Journal	Signal Processing
Volume	111
DOIs	https://doi.org/10.1016/j.sigpro.2014.12.005
State	Published - Jun 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 Published by Elsevier B.V.

Keywords

Coherent signals
Direction-of-arrival (DOA) estimation
Fourth-order cumulant
Joint diagonalization
Toeplitz matrix

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10.1016/j.sigpro.2014.12.005

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title = "Localization of coherent signals without source number knowledge in unknown spatially correlated Gaussian noise",

abstract = "A new direction-of-arrival estimator for coherent signals in spatially correlated noise is devised in this paper. By constructing a set of fourth-order cumulant based Toeplitz matrices, the coherent signals can be decorrelated. Moreover, by utilizing the joint diagonalization structure of these Toeplitz matrices, a new cost function that does not require any a priori information of the source number is developed. Numerical examples are provided to demonstrate the effectiveness of the proposed approach.",

keywords = "Coherent signals, Direction-of-arrival (DOA) estimation, Fourth-order cumulant, Joint diagonalization, Toeplitz matrix",

author = "Cheng Qian and Lei Huang and Yuhang Xiao and So, {H. C.}",

note = "Publisher Copyright: {\textcopyright} 2015 Published by Elsevier B.V.",

year = "2015",

month = jun,

doi = "10.1016/j.sigpro.2014.12.005",

language = "English (US)",

volume = "111",

pages = "170--178",

journal = "Signal Processing",

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T1 - Localization of coherent signals without source number knowledge in unknown spatially correlated Gaussian noise

AU - Qian, Cheng

AU - Huang, Lei

AU - Xiao, Yuhang

AU - So, H. C.

PY - 2015/6

Y1 - 2015/6

N2 - A new direction-of-arrival estimator for coherent signals in spatially correlated noise is devised in this paper. By constructing a set of fourth-order cumulant based Toeplitz matrices, the coherent signals can be decorrelated. Moreover, by utilizing the joint diagonalization structure of these Toeplitz matrices, a new cost function that does not require any a priori information of the source number is developed. Numerical examples are provided to demonstrate the effectiveness of the proposed approach.

AB - A new direction-of-arrival estimator for coherent signals in spatially correlated noise is devised in this paper. By constructing a set of fourth-order cumulant based Toeplitz matrices, the coherent signals can be decorrelated. Moreover, by utilizing the joint diagonalization structure of these Toeplitz matrices, a new cost function that does not require any a priori information of the source number is developed. Numerical examples are provided to demonstrate the effectiveness of the proposed approach.

KW - Coherent signals

KW - Direction-of-arrival (DOA) estimation

KW - Fourth-order cumulant

KW - Joint diagonalization

KW - Toeplitz matrix

UR - http://www.scopus.com/inward/record.url?scp=84921059518&partnerID=8YFLogxK

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U2 - 10.1016/j.sigpro.2014.12.005

DO - 10.1016/j.sigpro.2014.12.005

M3 - Article

AN - SCOPUS:84921059518

SN - 0165-1684

VL - 111

SP - 170

EP - 178

JO - Signal Processing

JF - Signal Processing

ER -

Localization of coherent signals without source number knowledge in unknown spatially correlated Gaussian noise

Abstract

Bibliographical note

Keywords

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