Wireless connectivity has been realized for multiple environments and different frequency bands. However, little research exists about mmWave communication in industrial environments. This paper presents the 60 GHz double-directional radio channel for mmWave communication in a ship hull for Line-of-Sight (LOS) and non-Line-of-Sight (NLOS) conditions. We performed channel measurements using the Terragraph channel sounder at different locations in the ship hull and fitted LOS path loss to a one-slope path loss model. Path loss and root-mean-square delay spread of the LOS path is compared to the reflected path with lowest path loss. NLOS communication via this first-order reflected path is modeled by calculating the path distance and determining the reflection loss. The reflection losses have a considerable contribution to the signal attenuation of the reflected path. The channel models are implemented in an indoor coverage prediction tool, which was extended with a ray launching algorithm and validated by comparison with an analytical electromagnetic solver. The results show that the mmWave radio channel allows high-throughput communication within a ship hull compartment, even when no LOS path between the transmitter and receiver is present.

已经实现了针对多种环境和不同频段的无线连接。然而，关于工业环境中毫米波通信的研究很少。本文介绍了 60 GHz 双向无线电信道，用于在视距 (LOS) 和非视距 (NLOS) 条件下在船体中进行毫米波通信。我们使用 Terragraph 通道测深仪在船体的不同位置进行通道测量，并将 LOS 路径损耗拟合到单斜率路径损耗模型。将 LOS 路径的路径损耗和均方根延迟扩展与具有最低路径损耗的反射路径进行比较。通过计算路径距离和确定反射损耗来模拟经由该一阶反射路径的 NLOS 通信。反射损耗对反射路径的信号衰减有相当大的贡献。信道模型在室内覆盖预测工具中实现，该工具通过射线发射算法进行了扩展，并通过与解析电磁求解器的比较进行了验证。结果表明，即使发射器和接收器之间不存在 LOS 路径，毫米波无线电信道也允许在船体舱内进行高吞吐量通信。