Near-Field Localization with an Exact Propagation Model in Presence of Mutual Coupling
Abstract
Localizing near-field sources considering practical arrays is important in wireless communications. Array-based apertures exhibit mutual coupling between the array elements, which can significantly degrade the performance of the localization method. In this paper, we propose two methods to localize near-field sources by direction of arrival (DOA) and range estimations in the presence of mutual coupling. The first method utilizes a two-dimensional search to estimate DOA and the range of the source. Therefore, it suffers from a high computational load. The second method reduces the two-dimensional search to one-dimensional, thus decreasing the computational complexity while offering similar DOA and range estimation performance. Besides, our second method reduces computational time by over 50% compared to the multiple signal classification (MUSIC) algorithm.
- Publication:
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arXiv e-prints
- Pub Date:
- July 2024
- DOI:
- 10.48550/arXiv.2407.19597
- arXiv:
- arXiv:2407.19597
- Bibcode:
- 2024arXiv240719597E
- Keywords:
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- Electrical Engineering and Systems Science - Signal Processing
- E-Print:
- Proceedings of 2024 IEEE 99th Vehicular Technology Conference (VTC2024-Spring)