Cumulants-based near-field localization method for cross array.
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| Title: | Cumulants-based near-field localization method for cross array. |
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| Authors: | Shi, Heping1 (AUTHOR) shiheping@tju.edu.cn, Weng, Xinyu1 (AUTHOR) 0721231020@tute.edu.cn, Yan, Guanghui1 (AUTHOR) yanguanghui@tute.edu.cn, Li, Zhuo2 (AUTHOR) zli@tju.edu.cn, Hou, Haijing1 (AUTHOR) houhj@tute.edu.cn |
| Source: | Circuits, Systems & Signal Processing. Jul2025, Vol. 44 Issue 7, p5357-5370. 14p. |
| Subjects: | Multiple Signal Classification, Cumulants, Angles, Algorithms, Crosses |
| Abstract: | A direction-finding algorithm based on the cross array with the fourth-order cumulants (FOC) is proposed to cope with the near-field (NF) sources localization problem. By generating a FOC matrix on the X-axis, the quadratic term in the phase delay could be eliminated, and the received data on the uniform linear array (ULA) corresponding to the X-axis is converted into pseudo-data for the virtual far-field (FF) that subsequently operated by the vectorization. With several sampling delay to construct a covariance-like matrix, the estimates of the electrical angle α and range can be obtained by two multiple signal classification (MUSIC) algorithm in turn. And the same procedure can be used on the Y-axis to obtain the estimates of respective electrical angle θ and range. Simple pairing process is performed on the two-dimensional (2-D) electrical angle, and range. Simulation results illustrate the effectiveness of the proposed algorithm. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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