基于交叉阵的共轭增强时空近场源定位

ICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) Pub Date : 2022-05-23 DOI:10.1109/icassp43922.2022.9746864

Zhi-Min Jiang, Hua Chen, Wei Liu, Ye Tian, G. Wang

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引用次数: 0

摘要

提出了一种基于对称交叉阵列的二维到达方向和距离估计的近场源定位方法。首先利用信号自相关在不同时滞处的共轭对称性构造共轭增广时空互相关矩阵，然后根据Khatri-Rao积的性质对扩展转向向量进行解耦，避免了通常的多维(M-D)搜索，最后采用三次一维(1-D) MUSIC型搜索得到结果。该方法可以实现与每个源相关联的多个参数的自动配对，并适用于欠确定情况。

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Conjugate Augmented Spatial-Temporal Near-Field Sources Localization with Cross Array

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.

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ICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

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