3-D Near-Field Localization by Jointly Exploiting Spatial and Temporal Information Based on a Nonuniform Cross Array
Zelong Yi, Hua Chen, Zhiwei Jiang, Wei Liu, Qing Wang, Gang Wang
Abstract
In this paper, an underdetermined three-dimensional (3-D) near-field source localization method is proposed, based on a two-dimensional (2-D) symmetric nonuniform cross array. Firstly, the fourth-order cumulant of the near-field observations with multiple delay lags is exploited to construct virtual far-field pseudo-observations, leading to increased degrees of freedom (DOF); then, 2-D angles of the nearfield sources are jointly estimated by employing the recently proposed sparse and parametric approach (SPA) and Vandermonde decomposition technique, eliminating the need for parameter discretization. To estimate the range term, the one-dimensional (1-D) MUSIC algorithm is applied by resorting to the conjugate symmetry property of the signal's autocorrelation function. Numerical results are provided to demonstrate the superiority of our method.
BibTeX
@inproceedings{icassp2024_3dnearfieldlocal,
title = {3-D Near-Field Localization by Jointly Exploiting Spatial and Temporal Information Based on a Nonuniform Cross Array},
author = {Zelong Yi and Hua Chen and Zhiwei Jiang and Wei Liu and Qing Wang and Gang Wang},
booktitle = {ICASSP 2024},
year = {2024}
}