Near-field channel estimation via wavefront parameterization
Fuente:
arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866909014903750656 |
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| author | Do, Heedong Lee, Namyoon Lozano, Angel |
| author_facet | Do, Heedong Lee, Namyoon Lozano, Angel |
| contents | This paper deals with the estimation of multiantenna channels in the line-of-sight conditions that are prevalent in the near field. By expressing the curved wavefront as a polynomial via a power series expansion of a sphere, the estimation of the channel over the array can be formulated as a multidimensional polynomial phase estimation problem. The application of a newly developed polynomial phase estimator, able of handling arbitrary dimensions and polynomial degrees, yields a superior tradeoff between channel estimation accuracy and complexity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_04238 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Near-field channel estimation via wavefront parameterization Do, Heedong Lee, Namyoon Lozano, Angel Signal Processing This paper deals with the estimation of multiantenna channels in the line-of-sight conditions that are prevalent in the near field. By expressing the curved wavefront as a polynomial via a power series expansion of a sphere, the estimation of the channel over the array can be formulated as a multidimensional polynomial phase estimation problem. The application of a newly developed polynomial phase estimator, able of handling arbitrary dimensions and polynomial degrees, yields a superior tradeoff between channel estimation accuracy and complexity. |
| title | Near-field channel estimation via wavefront parameterization |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2605.04238 |