数字海洋与水下攻防2026，Vol.9Issue(3)：242-249,8.DOI:10.19838/j.issn.2096-5753.2026.03.001
面向水声多径信道的图像语义词元传输方法
Semantic Token Transmission of Images over Underwater Acoustic Multipath Channels
摘要
Abstract
To address bandwidth constraints and severe multipath interference in underwater acoustic channels,where existing continuous-feature semantic transmission schemes suffer from catastrophic distortion,a robust underwater image transmission method based on discrete semantic tokens is porposed in this paper.The proposed method utilizes a Vision Transformer(ViT)to extract global 1-D latent features,which are then mapped into high-dimensional discrete token sequences via a shared semantic codebook and vector quantization mechanism.This discretization paradigm effectively strips spatial redundancy and background noise while enhancing signal robustness through the error-tolerance of discrete spaces.Combined with codebook-based error correction at the receiver,high-fidelity semantic reconstruction is achieved under extreme channel conditions.Experiments on the URPC2020 dataset demonstrate that under severe multipath distortion,the proposed method significantly outperforms state-of-the-art semantic communication schemes in perceptual quality metrics such as FID and LPIPS.关键词
语义通信/词元通信/水声通信/图像传输Key words
semantic communication/token communication/underwater acoustic communication/image transmission分类
信息技术与安全科学引用本文复制引用
陈晓广,李维,石青川..面向水声多径信道的图像语义词元传输方法[J].数字海洋与水下攻防,2026,9(3):242-249,8.基金项目
国家自然科学基金面上项目"水声数据稀缺、信道极窄场景下面向水下目标识别的语义通信"(62471159). （62471159）
