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首页> 外文期刊>Journal of aerospace engineering >Tabletop Testbed for Attitude Determination and Control of Nanosatellites
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Tabletop Testbed for Attitude Determination and Control of Nanosatellites

机译：用于纳米卫星姿态确定和控制的台式试验台

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To simulate the conditions of the space environment at ground, the Laboratory of Application and Innovation in Aerospace Science (LAICA) of the University of Brasilia (UnB) is developing a dedicated testbed to reproducing nanosatellite attitude motion. The testbed is composed of an air-bearing table and a Helmholtz cage. The air-bearing table is a spacecraft simulator that can simulate frictionless conditions with three rotational degrees of freedom. Balancing the simulator is essential in order to make the gravitational torque negligible. The testbed is also equipped with a Helmholtz cage to recreate the Earth's magnetic field conditions that spacecrafts encounter in orbit. This paper presents the design and realization of this low-cost testbed. A simple and efficient automated balancing algorithm based on the least-squares method (LSM) is proposed and validated by experiments. The performance of the proposed simulator is evaluated and compared with previous works. (C) 2018 American Society of Civil Engineers.
机译：为了模拟地面空间环境的状况，巴西利亚大学（UnB）的航空航天应用与创新实验室（LAICA）正在开发专用的试验台，以再现纳米卫星的姿态运动。该试验台由一个气垫台和一个亥姆霍兹笼组成。空气轴承台是一个航天器模拟器，可以模拟具有三个旋转自由度的无摩擦条件。为了使重力转矩可以忽略不计，平衡模拟器是必不可少的。测试台还配备了亥姆霍兹笼，可重现航天器在轨道上遇到的地球磁场条件。本文介绍了这种低成本测试平台的设计和实现。提出了一种基于最小二乘法（LSM）的简单高效的自动平衡算法，并通过实验进行了验证。拟议的模拟器的性能进行了评估，并与以前的工作进行了比较。 （C）2018美国土木工程师学会。

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