This paper presents an in-band Full Duplex (FD) integrated sensing and communications system comprising a holographic Multiple-Input Multiple-Output (MIMO) base station, which is capable to simultaneously communicate with multiple users in the downlink direction, while sensing targets being randomly distributed within its coverage area. Considering near-field wireless operation at THz frequencies, the FD node adopts dynamic metasurface antenna panels for both transmission and reception, which consist of massive numbers of sub-wavelength-spaced metamaterials, enabling reduced cost and power consumption analog precoding and combining. We devise an optimization framework for the FD node's reconfigurable parameters with the dual objective of maximizing the targets' parameters estimation accuracy and the downlink communication performance. Our simulation results verify the integrated sensing and communications capability of the proposed FD holographic MIMO system, showcasing the interplays among its various design parameters.

翻译：本文提出了一种带内全双工（FD）集成感知与通信系统，该系统包含一个全息多输入多输出（MIMO）基站，能够在下行链路方向与多个用户同时通信，同时感知覆盖区域内随机分布的目标。考虑太赫兹频段的近场无线操作，该FD节点采用动态超表面天线面板进行发送和接收，这些面板由大量亚波长间距的超材料构成，从而实现了低成本、低功耗的模拟预编码与合并。我们针对FD节点的可重构参数设计了一个优化框架，其双重目标是最大化目标参数估计精度与下行链路通信性能。仿真结果验证了所提出的FD全息MIMO系统的集成感知与通信能力，并展示了其各设计参数之间的相互影响。