A low-power networked navigation method for underwater moving target supporting beacon autonomous switching

Chao Wang; Pengyu Du; Hongtao Zhang

doi:10.1117/12.2643593

20 January 2023 A low-power networked navigation method for underwater moving target supporting beacon autonomous switching

Chao Wang, Pengyu Du, Hongtao Zhang

Author Affiliations +

Proceedings Volume 12562, AOPC 2022: Optical Information and Networks; 1256205 (2023) https://doi.org/10.1117/12.2643593
Event: Applied Optics and Photonics China 2022 (AOPC2022), 2022, Beijing, China

Abstract

The rapid development of underwater acoustic sensor networks(UASNs) will greatly improve people's ability to perceive and apply the ocean. The positional information of network nodes plays a vital role in UASNs system. Aiming at the problems of multiple access interference and location beacon selection in traditional location methods, this paper proposes a multiple access method combined with FDMA / CDMA, which optimizes the division of frequency band and orthogonal code resources according to the network topology to ensure that different beacon nodes send location signals with different frequencies and different orthogonal code compared, so as to realize conflict free multiple access of multiple location signals. This paper also proposes a network beacon autonomous switching method, which optimizes the transmission time of control command according to the position relationship between its own position and network nodes, updates the positioning beacon in real-time, and realizes the cross regional autonomous navigation and positioning of underwater mobile nodes. The method in this paper is verified by simulation and sea trial.

Citation Download Citation

Chao Wang, Pengyu Du, and Hongtao Zhang "A low-power networked navigation method for underwater moving target supporting beacon autonomous switching", Proc. SPIE 12562, AOPC 2022: Optical Information and Networks, 1256205 (20 January 2023); https://doi.org/10.1117/12.2643593

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