Cumulant-Based Biquaternion Approach to Direction Finding of Wideband Signals

Yang Yang; Zhiwen Liu; Yougen Xu; Junpeng Zhuang

doi:10.1109/LCOMM.2019.2957228

Cumulant-Based Biquaternion Approach to Direction Finding of Wideband Signals

Yang Yang, Zhiwen Liu^*, Yougen Xu, Junpeng Zhuang

^*Corresponding author for this work

School of Integrated Circuits and Electronics

Beijing Institute of Technology

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

4 Citations (Scopus)

Abstract

A direction-of-arrival (DOA) estimator is presented for statistically independent non-Gaussian and non-circular wideband signals in the presence of Gaussian noise (possibly spatially colored). With joint exploitation of non-Gaussianity and non-circularity of incident signals, enhanced aperture extension is achieved. The incorporation of the aligned biquaternion adjoint subspace augmentation and the aligned virtual array synthesis within the biquaternion framework, using both the standard and the complementary fourth-order cumulant matrices, enables wideband underdetermined DOA estimation: handling more signals than the number of sensors. The efficacy of the presented method has been demonstrated using simulated data.

Original language	English
Article number	8920007
Pages (from-to)	630-634
Number of pages	5
Journal	IEEE Communications Letters
Volume	24
Issue number	3
DOIs	https://doi.org/10.1109/LCOMM.2019.2957228
Publication status	Published - Mar 2020

Keywords

Array signal processing
cumulant
direction-of-arrival estimation
non-circular
wideband

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10.1109/LCOMM.2019.2957228

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title = "Cumulant-Based Biquaternion Approach to Direction Finding of Wideband Signals",

abstract = "A direction-of-arrival (DOA) estimator is presented for statistically independent non-Gaussian and non-circular wideband signals in the presence of Gaussian noise (possibly spatially colored). With joint exploitation of non-Gaussianity and non-circularity of incident signals, enhanced aperture extension is achieved. The incorporation of the aligned biquaternion adjoint subspace augmentation and the aligned virtual array synthesis within the biquaternion framework, using both the standard and the complementary fourth-order cumulant matrices, enables wideband underdetermined DOA estimation: handling more signals than the number of sensors. The efficacy of the presented method has been demonstrated using simulated data.",

keywords = "Array signal processing, cumulant, direction-of-arrival estimation, non-circular, wideband",

author = "Yang Yang and Zhiwen Liu and Yougen Xu and Junpeng Zhuang",

note = "Publisher Copyright: {\textcopyright} 1997-2012 IEEE.",

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AU - Yang, Yang

AU - Liu, Zhiwen

AU - Xu, Yougen

AU - Zhuang, Junpeng

PY - 2020/3

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N2 - A direction-of-arrival (DOA) estimator is presented for statistically independent non-Gaussian and non-circular wideband signals in the presence of Gaussian noise (possibly spatially colored). With joint exploitation of non-Gaussianity and non-circularity of incident signals, enhanced aperture extension is achieved. The incorporation of the aligned biquaternion adjoint subspace augmentation and the aligned virtual array synthesis within the biquaternion framework, using both the standard and the complementary fourth-order cumulant matrices, enables wideband underdetermined DOA estimation: handling more signals than the number of sensors. The efficacy of the presented method has been demonstrated using simulated data.

AB - A direction-of-arrival (DOA) estimator is presented for statistically independent non-Gaussian and non-circular wideband signals in the presence of Gaussian noise (possibly spatially colored). With joint exploitation of non-Gaussianity and non-circularity of incident signals, enhanced aperture extension is achieved. The incorporation of the aligned biquaternion adjoint subspace augmentation and the aligned virtual array synthesis within the biquaternion framework, using both the standard and the complementary fourth-order cumulant matrices, enables wideband underdetermined DOA estimation: handling more signals than the number of sensors. The efficacy of the presented method has been demonstrated using simulated data.

KW - Array signal processing

KW - cumulant

KW - direction-of-arrival estimation

KW - non-circular

KW - wideband

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EP - 634

JO - IEEE Communications Letters

JF - IEEE Communications Letters

IS - 3

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ER -

Cumulant-Based Biquaternion Approach to Direction Finding of Wideband Signals

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Keywords

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