Mobile underwater acoustic (UWA) communication is expected to enable advanced, efficient, and reliable underwater exploration. However, crosstalk among terminals occurs when multiple vehicles emit signals at the same time. In this paper, we propose a UWA lens that has the potential to achieve space-division multiple access by avoiding crosstalk between signals that come from a different angle. Specifically, we used wave theory to design a wide-angle compound eye lens and a hydrophone array geometrically. The two-dimensional finite-difference time-domain method was used to calculate wave propagation. Multi-user communication using a single-carrier scheme (two sources emit the signal simultaneously) was simulated with the designed lens system. The communication method with the lens system showed superior performance to that without the lens system. Additionally, the performance was improved by inserting partitions between lens segments.

移动水声 (UWA) 通信有望实现先进、高效和可靠的水下探索。然而，当多辆车同时发射信号时，终端之间会发生串扰。在本文中，我们提出了一种 UWA 镜头，它有可能通过避免来自不同角度的信号之间的串扰来实现空分多址。具体来说，我们使用波动理论在几何上设计了广角复眼透镜和水听器阵列。二维有限差分时域方法用于计算波的传播。使用设计的透镜系统模拟使用单载波方案（两个源同时发射信号）的多用户通信。与没有镜头系统的通信方法相比，有镜头系统的通信方法表现出优越的性能。