【摘要】 太赫兹（0.1～10 THz）通信技术以其超大带宽资源和超高通信速率等特点成为未来无线通信的关键技术。基于Beckman-Kirchhoff散射理论和射线追踪技术，在太赫兹波段对统一的多射线信道模型进行了修正，该模型结合了直射、反射和散射，并用已有的文献数据对模型进行了验证。此外，使用等功率分配和注水功率分配策略对太赫兹宽带信道容量进行表征。结果表明由于较高的频率选择性，资源分配在开发太赫兹频谱方面极为重要。该研究为太赫兹通信系统的研究与设计提供了参考依据。更多还原

【Abstract】 Terahertz(0. 1-10 THz) band communication is envisioned as a key technology of future wireless communication because of its technical characteristics, such as super large bandwidth resources and super high communication rates. Herein, ray-tracing techniques and Beckman-Kirchhoff scattering theory are used to modify a unified multi-ray channel model in the terahertz band. The model combines direct, reflection, and scattering, and is supported by experimental data from the literatures. Furthermore, the wideband channel capacity usage is characterized using equal power and water-filling power allocation strategies. The simulation results show that the importance of resource allocation in exploiting the terahertz spectrum due to its extremely high frequency-selectivity. The study will provide some guidance for future research and design of the terahertz communication systems.更多还原