Developing superior quantum sensing strategies ranging from ultrahigh precision measurements to complex structural analyses is at the heart of quantum technologies. Although strategies to enhance the sensing precision using quantum resources, such as entanglement among sensors, have been abundantly demonstrated, the signal correlation among quantum sensors is rarely exploited. Here we develop a new sensing paradigm that exploits the signal correlation among multiple quantum sensors to resolve overlapping signals from multiple targets that individual sensors cannot resolve and complex structural construction techniques struggles with. By using three nitrogen-vacancy centres as a quantum electrometer system, we demonstrate this multisensor paradigm by resolving the fluctuating electric fields of individual defects from ensemble signals. We image the three-dimensional distribution of 16 dark electronic point defects in a diamond with accuracy approaching 1.7 nm via a GPS-like localization method. Furthermore, we obtain the real-time charge dynamics of individual point defects and visualize how the dynamics induce the well-known optical spectral diffusion. The multisensor paradigm extends the quantum sensing toolbox and offers new possibilities for structural analysis.

开发从超高精度测量到复杂结构分析的卓越量子传感策略是量子技术的核心。尽管利用量子资源提高传感精度的策略（例如传感器之间的纠缠）已被大量论证，但量子传感器之间的信号相关性却很少被利用。在这里，我们开发了一种新的传感范例，利用多个量子传感器之间的信号相关性来解决来自多个目标的重叠信号，而单个传感器无法解决这些信号，并且复杂的结构构建技术难以解决。通过使用三个氮空位中心作为量子静电计系统，我们通过解决整体信号中单个缺陷的波动电场来演示这种多传感器范例。我们通过类似 GPS 的定位方法对钻石中 16 个暗电子点缺陷的三维分布进行成像，精度接近 1.7 nm。此外，我们获得了单个点缺陷的实时电荷动力学，并可视化该动力学如何引起众所周知的光谱扩散。多传感器范例扩展了量子传感工具箱，并为结构分析提供了新的可能性。