在通过双水音箱的全双重水下声学通信中取消自我干扰
Songwen Wu1,2,3,4, Yinheng Lu5, Feng Zhou1,2,3,4
1National Key Laboratory of Underwater Acoustic Technology, Harbin Engineering University, Harbin 150001, China.
The Journal of the Acoustical Society of America
|December 30, 2025
概括
本研究介绍了一种全双重 (FD) 水下声通信 (UWAC) 系统的新型自我干扰取消 (SIC) 方法. 该技术有效减少干扰,使得水下数据传输更清晰,远距离.
科学领域:
- 水下声学通讯水下声学通讯
- 信号处理 信号处理
- 无线通信系统无线通信系统
背景情况:
- 强烈的自我干扰 (SI) 是全双重 (FD) 水下声通信 (UWAC) 系统的一个主要挑战.
- 现有的自我干扰取消 (SIC) 方法在与非线性干扰和未知干扰源作斗争.
研究的目的:
- 为FD-UWAC系统提出和验证一个先进的SIC方法.
- 解决传统SIC技术的局限性,特别是在处理强大的SI和非线性干扰方面.
- 提高水下声通信的稳定性和性能.
主要方法:
- 开发了一种先进的SIC方法,利用两个水声机之间的差分通道特征.
- 在距离源更近的参考水声机上使用,以取消远处接收器的SI.
- 实现了SIC模型通道参数的动态更新,以实现稳定的性能.
- 通过游泳池实验和海上试验验证了该方法.
主要成果:
- 在池实验中,SIC性能大约达到54.75dB.
- 远端信号的位误差率保持在1 × 10-3以下.
- 在海上试验中证明了50公里的浅海通信,信号干扰比为-40dB.
- 与传统方法相比,它展示了优越的SIC能力,特别是在非线性和未知干扰方面.
结论:
- 拟议的SIC方法为FD-UWAC系统中的自我干扰取消提供了一个强大的解决方案.
- 该技术为增强水下通信能力提供了重要的理论和实践价值.
- 动态适应和优异的干扰处理使这种方法对现实世界的应用具有前景.
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