Multiple-Cumulant-Matrices-Based Method for Exact NF Polarization Localization with COLD Array
As a key technology for the fifth-generation of mobile communications, massive MIMO systems enable massive user access via large-scale arrays. However, their dense deployment extends the near-field (NF) region, introducing new localization complexities. Based on an exact spherical wavefront model, t...
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MDPI AG
2025-05-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/25/10/3244 |
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| author | Jiefeng Zheng Haifen Meng Zhuang Luo Huayue Wu Weiyue Liu Hua Chen |
| author_facet | Jiefeng Zheng Haifen Meng Zhuang Luo Huayue Wu Weiyue Liu Hua Chen |
| author_sort | Jiefeng Zheng |
| collection | DOAJ |
| description | As a key technology for the fifth-generation of mobile communications, massive MIMO systems enable massive user access via large-scale arrays. However, their dense deployment extends the near-field (NF) region, introducing new localization complexities. Based on an exact spherical wavefront model, this paper proposes a multiple-cumulant-matrices-based method for NF source localization using a Co-centered Orthogonal Loop and Dipole (COLD) array. Firstly, following the physical numbering of array elements, we can construct multiple polarization cumulant matrices, which can then be cascaded into a long matrix. Next, the signal subspace can be obtained through eigen-decomposition of this long matrix, from which the horizontal and vertical components can be further separated. By applying ESPRIT, joint angle, range, and polarization parameters can be estimated. In addition, the asymptotic variances for joint spatial and polarization parameters are analyzed. Compared with existing NF polarization algorithms, the proposed method exhibits better parameter estimation and is consistent with a theoretical asymptotic performance. |
| format | Article |
| id | doaj-art-bafe1e7f5ed3429cbbf22303afdeb938 |
| institution | DOAJ |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-bafe1e7f5ed3429cbbf22303afdeb9382025-08-20T03:12:09ZengMDPI AGSensors1424-82202025-05-012510324410.3390/s25103244Multiple-Cumulant-Matrices-Based Method for Exact NF Polarization Localization with COLD ArrayJiefeng Zheng0Haifen Meng1Zhuang Luo2Huayue Wu3Weiyue Liu4Hua Chen5Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, ChinaFaculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, ChinaFaculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, ChinaSchool of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, ChinaFaculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, ChinaFaculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, ChinaAs a key technology for the fifth-generation of mobile communications, massive MIMO systems enable massive user access via large-scale arrays. However, their dense deployment extends the near-field (NF) region, introducing new localization complexities. Based on an exact spherical wavefront model, this paper proposes a multiple-cumulant-matrices-based method for NF source localization using a Co-centered Orthogonal Loop and Dipole (COLD) array. Firstly, following the physical numbering of array elements, we can construct multiple polarization cumulant matrices, which can then be cascaded into a long matrix. Next, the signal subspace can be obtained through eigen-decomposition of this long matrix, from which the horizontal and vertical components can be further separated. By applying ESPRIT, joint angle, range, and polarization parameters can be estimated. In addition, the asymptotic variances for joint spatial and polarization parameters are analyzed. Compared with existing NF polarization algorithms, the proposed method exhibits better parameter estimation and is consistent with a theoretical asymptotic performance.https://www.mdpi.com/1424-8220/25/10/3244spherical wavefrontfourth order cumulantESPRITasymptotic variance |
| spellingShingle | Jiefeng Zheng Haifen Meng Zhuang Luo Huayue Wu Weiyue Liu Hua Chen Multiple-Cumulant-Matrices-Based Method for Exact NF Polarization Localization with COLD Array Sensors spherical wavefront fourth order cumulant ESPRIT asymptotic variance |
| title | Multiple-Cumulant-Matrices-Based Method for Exact NF Polarization Localization with COLD Array |
| title_full | Multiple-Cumulant-Matrices-Based Method for Exact NF Polarization Localization with COLD Array |
| title_fullStr | Multiple-Cumulant-Matrices-Based Method for Exact NF Polarization Localization with COLD Array |
| title_full_unstemmed | Multiple-Cumulant-Matrices-Based Method for Exact NF Polarization Localization with COLD Array |
| title_short | Multiple-Cumulant-Matrices-Based Method for Exact NF Polarization Localization with COLD Array |
| title_sort | multiple cumulant matrices based method for exact nf polarization localization with cold array |
| topic | spherical wavefront fourth order cumulant ESPRIT asymptotic variance |
| url | https://www.mdpi.com/1424-8220/25/10/3244 |
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