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2019-12-09
A Novel Nested Array Design for Direction of Arrival Estimation of Noncircular Signals
By
Weijian Si,

    Dr. Weijian Si

    College of Information & Communication Engineering

    Harbin Engineering University

    China

    Homepage

Zhanli Peng,

    Dr. Zhanli Peng

    College of Information and Communication Engineering

    Harbin Engineering University

    China

    Homepage

Changbo Hou,

    Dr. Changbo Hou

    Harbin Engineering University

    China

    Homepage

Fuhong Zeng

    Dr. Fuhong Zeng

    College of Information and Communication Engineering

    Harbin Engineering University

    China

    Homepage

Progress In Electromagnetics Research M, Vol. 87, 83-92, 2019
doi:10.2528/PIERM19100403 | Google Scholar

Abstract
In this paper, a novel nested array is proposed for direction of arrival (DOA) estimation of noncircular signals. By using the noncircular property, the resulting virtual array is composed of difference coarray (DCA) and sum coarray (SCA). Specifically, we first give the properties of DCA and SCA for generalized translational nested array. Then, based on the relationship between DCA and SCA, an optimal translational nested array with increased degrees of freedom (DOFs) is constructed. To extend the physical array aperture, we move part of sensors in the translational nested array to the mirrored locations. Accordingly, the novel nested array with increased DOFs and physical array aperture is obtained. Finally, superiority of the proposed array is demonstrated by simulation experiments.
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Citation
Weijian Si, Zhanli Peng, Changbo Hou, and Fuhong Zeng, "A Novel Nested Array Design for Direction of Arrival Estimation of Noncircular Signals," Progress In Electromagnetics Research M, Vol. 87, 83-92, 2019.
doi:10.2528/PIERM19100403
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