Unmanned aerial vehicle (UAV)-enabled integrated sensing and communication (ISAC) has attracted growing research interests in the context of sixth-generation (6G) wireless networks, in which UAVs will be exploited as aerial wireless platforms to provide better coverage and enhanced sensing and communication (S&C) services. However, due to the UAVs' size, weight, and power (SWAP) constraints, controllable mobility, and line-of-sight (LoS) air-ground channels, UAV-enabled ISAC introduces both new opportunities and challenges. This article provides an overview of UAV-enabled ISAC, and proposes various solutions for optimizing the S&C performance. In particular, we first introduce UAV-enabled joint S&C, and discuss UAV motion control, wireless resource allocation, and interference management for the cases of single and multiple UAVs. Then, we present two application scenarios for exploiting the synergy between S&C, namely sensing-assisted UAV communication and communication-assisted UAV sensing. Finally, we highlight several interesting research directions to guide and motivate future work.

翻译：无人机赋能的一体化感知与通信（ISAC）在第六代（6G）无线网络背景下引起了日益增长的研究兴趣。其中，无人机将被用作空中无线平台，以提供更好的覆盖以及增强的感知与通信（S&C）服务。然而，由于无人机的尺寸、重量和功耗（SWAP）约束、可控移动性以及视距（LoS）空地信道，无人机赋能ISAC带来了新的机遇与挑战。本文概述了无人机赋能ISAC，并提出了优化感知与通信性能的各种解决方案。具体而言，我们首先介绍无人机赋能的联合感知与通信，并讨论单无人机和多无人机情况下的无人机运动控制、无线资源分配与干扰管理。接着，我们展示两种利用感知与通信协同作用的典型应用场景，即感知辅助的无人机通信和通信辅助的无人机感知。最后，我们指出若干有趣的研究方向，以引导并激励未来的研究工作。