ORIGINAL RESEARCH article
Front. Mar. Sci.
Sec. Ocean Observation
Volume 12 - 2025 | doi: 10.3389/fmars.2025.1560958
The design of multiple orthogonal signals based on auto-encoder optimization network
Provisionally accepted
- Naval University of Engineering, Wuhan, Hubei, China
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To enhance the capability of active sonar for oceanic detection,a signal design method based on an auto-encoder network is devised in this paper. In this method, a randomly normalized phase sequence is put into the network and it is optimized by minimizing the peak side-lobe level of the phase sequence. Compared with the existing methods,the network structure is adjusted to further consider the transmitted signal design under the Doppler frequency shift. Simulation results show that the designed signals perform better than the existing method under Doppler frequency shift.
Keywords: signal design, Doppler frequency shift, Auto-encoder, Auto-ambiguity function peak side-lobe level, Cross-ambiguity function peak side-lobe level
Received: 15 Jan 2025; Accepted: 22 Sep 2025.
Copyright: © 2025 Zhang, Liang and Wang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Sen Zhang, johnson_xh@sina.com
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