Augmented Matrix Construction Based DOA Estimation of Coherent Underwater Acoustic Signals

Zhuying Wang, Yongsheng Yan, Ke He, Haiyan Wang

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

Direction of arrival (DOA) estimation is critical in various fields, including wireless communications, radar, sonar, and electronic reconnaissance. Traditional DOA algorithms like minimum variance distortion-less response (MVDR) and multiple signal classification (MUSIC) are effective for incoherent sources. However, the presence of coherent signals due to underwater multipath propagation and human interference poses a challenge for traditional incoherent signal estimation algorithms. In this paper, we propose an augmented matrix construction based on DOA estimation of coherent signals, which firstly completes the conjugate rearrangement of the original received data, then obtains the autocorrelation matrix of the rearranged data, and obtains the cross-correlation matrix with the original received data. Finally, the augmentation matrix is constructed based on the covariance matrix of the original received signal, the conjugate rearrangement signal's autocorrelation matrix, and the two signals' intercorrelation matrix. Hence, this approach makes full use of the information of the echo signal, so it has higher resolution and estimation accuracy. Simulation analysis is conducted to verify the effectiveness and accuracy of our proposed algorithm. The results demonstrate that the algorithm outperforms traditional DOA estimation algorithms and provides robust performance in the presence of coherent signals.

源语言英语
主期刊名Proceedings of 2023 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2023
出版商Institute of Electrical and Electronics Engineers Inc.
ISBN(电子版)9798350316728
DOI
出版状态已出版 - 2023
活动2023 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2023 - Zhengzhou, Henan, 中国
期限: 14 11月 202317 11月 2023

出版系列

姓名Proceedings of 2023 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2023

会议

会议2023 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2023
国家/地区中国
Zhengzhou, Henan
时期14/11/2317/11/23

指纹

探究 'Augmented Matrix Construction Based DOA Estimation of Coherent Underwater Acoustic Signals' 的科研主题。它们共同构成独一无二的指纹。

引用此