A relative navigation sensor for CubeSats based on retro-reflective markers

F. Sansone, Francesco Branz, A. Francesconi
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引用次数: 6

Abstract

Over the last years, nanosatellites based on the CubeSat standard have been increasingly exploited by both academic institutions and commercial companies. The low cost and short development time of CubeSats make such miniature spacecraft interesting for a variety of applications. A particularly appealing future field of application for nanosatellites is On-Orbit Servicing of existing orbital assets. A number of mission concepts foresee the employment of miniature spacecraft to perform a variety of operations on orbital vehicles, ranging from inspection and monitoring to assembly and repairing. In this framework, the development of technologies that enable proximity navigation and/or docking between a nanosatellite chaser and a target object is of interest. In particular, miniaturized navigation sensors for the estimation of relative position and attitude of the involved vehicles are required. The work presented here focuses on the development of an IR-based relative navigation sensor compatible with CubeSat standard nanosatellites. The system estimates the relative pose and position of the target by taking images of the object, which is equipped with retro-reflecting fiducial markers illuminated by an array of IR LEDs on the chaser. The system architecture and operation are described, and preliminary laboratory test results are presented.
基于反射标记的立方体卫星相对导航传感器
在过去的几年里,基于立方体卫星标准的纳米卫星越来越多地被学术机构和商业公司利用。立方体卫星的低成本和短开发时间使得这种微型航天器对各种应用很感兴趣。纳米卫星未来一个特别吸引人的应用领域是现有轨道资产的在轨服务。许多任务概念都预见到微型航天器将在轨道飞行器上执行各种操作,从检查和监测到组装和修理。在这个框架下,纳米卫星追踪器和目标物体之间的近距离导航和/或对接技术的发展是值得关注的。特别是需要小型化的导航传感器来估计相关车辆的相对位置和姿态。本文介绍的工作重点是开发一种与CubeSat标准纳米卫星兼容的基于红外的相对导航传感器。该系统通过拍摄目标的图像来估计目标的相对姿态和位置,该目标配备了由跟踪器上的红外led阵列照亮的反向反射基准标记。介绍了系统的结构和工作原理,并给出了初步的实验室测试结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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