Conjugate Augmented Spatial-Temporal Near-Field Sources Localization with Cross Array
Zhiwei Jiang, Hua Chen, Wei Liu, Ye Tian, Gang Wang
Abstract
A new near-field source localization method is proposed for two-dimensional (2-D) direction-of-arrival (DOA) and range estimation based on a symmetrical cross array. It first employs the conjugate symmetry property of the signal auto-correlation at different time delays to construct a conjugate augmented spatial-temporal cross correlation matrix, then the extended steering vector is decoupled to avoid the usual multiple-dimensional (M-D) search based on the properties of the Khatri-Rao product, and finally three one-dimensional (1-D) MUSIC type searches are employed to obtain the results. The proposed method can realize automatic pairing of multiple parameters associated with each source and it also works in the underdetermined case.
BibTeX
@inproceedings{icassp2022_conjugateaugment,
title = {Conjugate Augmented Spatial-Temporal Near-Field Sources Localization with Cross Array},
author = {Zhiwei Jiang and Hua Chen and Wei Liu and Ye Tian and Gang Wang},
booktitle = {ICASSP 2022},
year = {2022}
}