方坤升,李德瑞,李宇

• 1:中国科学院声学研究所
• 2:中国科学院先进水下信息技术重点实验室
• 3:中国科学院大学

摘要(Abstract)：

针对传统稀疏自适应匹配追踪算法在水声信道估计中估计精度较低且鲁棒性差的问题，提出一种相关性约束-预估计压缩感知信道估计方法。在原子选择阶段利用相关性约束和预估计对稀疏自适应匹配追踪算法进行优化，避免选入相关干扰原子和错位原子，减少算法在迭代过程中的误差累积。在正交频分复用通信体制下，结合实测深海和浅海信道进行仿真分析，结果表明，相对于正交匹配追踪算法，本文改进的算法在深海实测信道和浅海实测信道中通信误码率性能分别提升4 dB和2 dB。

关键词(KeyWords)： 水声通信;信道估计;鲁棒性;压缩感知;正交频分复用

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(编号:62201565)

作者(Author): 方坤升,李德瑞,李宇

DOI: 10.20064/j.cnki.2095-347X.2024.04.005

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