METHODS article
Front. Mar. Sci.
Sec. Ocean Observation
High-resolution mapping of ocean floor based on synthetic aperture technique
Lili Zhang 1
Jiaqi Liu 1
Feng Jing 1
Peng Wu 1
Zhiping Xu 2
1. Shandong Labor Vocational and Technical College, Jinan, China
2. School of Ocean Information Engineering, Jimei University, Xiamen, China
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Abstract
To improve the imaging performance of multireceiver synthetic aperture sonar system, this paper proposes a new imaging methodology. The presented approach exploits the idea of Loffeld's bistatic formula (LBF) that is an accurate spectrum. Using the presented method, the bistatic phase of all receiver dataset is compensated, and the interleaving arrangement related to the compensated datasets is carried out. After the interleaving arrangement, the SAS datasets are imaged based upon the chirp scaling. The outcomes of our method are presented, and the performance comparisons between our method and back projection algorithm are further carried out. The comparisons show that the recommended approach can gain the good results. Besides, the recommended approach is much more time-saving than traditional approaches.
Summary
Keywords
Focusing method, Focusing performance, Imaging sonar, LBF, multireceiver system
Received
05 December 2025
Accepted
30 January 2026
Copyright
© 2026 Zhang, Liu, Jing, Wu and Xu. 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: Peng Wu; Zhiping Xu
Disclaimer
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