论文标题
用冷原子重力梯度量固定位置
Position fixing with cold atom gravity gradiometers
论文作者
论文摘要
本文提出了一种使用冷原子干涉仪的部分重力梯度溶液自动导航的位置固定方法。冷原子量子传感器可以对惯性量（例如加速度和旋转速率）提供超精确的测量。但是，我们研究了对冷原子干涉仪的使用来测量局部重力梯度，并通过针对合适的数据库参考这些测量值来提供位置信息。模拟车辆的运动，我们使用部分重力梯度测量来减少与惯性导航系统相关的位置漂移。使用标准开源全局重力数据库，我们显示了超过1000公里的轨迹稳定的导航解决方案。
This paper proposes a position fixing method for autonomous navigation using partial gravity gradient solutions from cold atom interferometers. Cold atom quantum sensors can provide ultra-precise measurements of inertial quantities, such as acceleration and rotation rates. However, we investigate the use of pairs of cold atom interferometers to measure the local gravity gradient and to provide position information by referencing these measurements against a suitable database. Simulating the motion of a vehicle, we use partial gravity gradient measurements to reduce the positional drift associated with inertial navigation systems. Using standard open source global gravity databases, we show stable navigation solutions for trajectories of over 1000km.
