太赫兹感知通信一体化波形设计与信号处理

Waveform design and signal processing for terahertz integrated sensing and communication

太赫兹波段感知通信一体化技术能够在提高数据传输速率和感知分辨率的同时,有效降低硬件资源和频谱资源的消耗。首先,简要介绍了感知通信一体化及太赫兹通信、感知的现状。然后,分别从感知和通信的角度讨论了一体化波形设计及优化策略,同时分析了两类信号接收机的信号处理算法,并实验展示了一种97GHz基于OFDM信号的一体化系统,对系统的距离、速度和通信等性能进行了测试。最后,总结和展望了太赫兹感知通信一体化的技术难题和未来研究方向。

Integrated sensing and communication(ISaC) in the terahertz band can efficiently reduce the consumption of hardware and spectrum resources, while improving the transmission data rate and sensing resolution. Firstly, the development status of ISaC, terahertz communication and sensing were briefly introduced. Then, the strategy of waveform design and optimization for ISaC and the receiving signal processing algorithms were presented. As an example, an OFDM ISaC system operating at 97 GHz was experientially demonstrate, and the performance of ranging, speed and communication were all evaluated in the experiment. Finally, the key issues and research directions of future terahertz ISaC development were discussed.