AUTHOR=Peng Dan , Xu Xichen , Song Wenhua , Gao Dazhi TITLE=Preprocessing LOFARgram through U-Net++ neural network JOURNAL=Frontiers in Marine Science VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2025.1528111 DOI=10.3389/fmars.2025.1528111 ISSN=2296-7745