Colodro-Conde Carlos
Instituto de Astrofísica de Canarias, c/Vía Láctea s/n, E-38205 La Laguna, Spain.
Sensors (Basel). 2024 May 16;24(10):3160. doi: 10.3390/s24103160.
In many areas of engineering, the design of a new system usually involves estimating performance-related parameters from early stages of the project to determine whether a given solution will be compliant with the defined requirements. This aspect is particularly relevant during the design of satellite payloads, where the target environment is not easily accessible in most cases. In the context of Earth observation sensors, this problem has been typically solved with the help of a set of complex pseudo-empirical models and/or expensive laboratory equipment. This paper describes a more practical approach: the illumination conditions measured by an in-orbit payload are recreated on ground with the help of a replica of the same payload so the performance of another Earth observation sensor in development can be evaluated. The proposed method is specially relevant in the context of small satellites, as the possibility of having extra units devoted to these tasks becomes greater as costs are reduced. The results obtained using this method in an actual space mission are presented in this paper, giving valuable information that will help in further stages of the project.
在许多工程领域，新系统的设计通常涉及从项目早期阶段开始估计与性能相关的参数，以确定给定的解决方案是否符合规定的要求。这一方面在卫星有效载荷设计过程中尤为重要，因为在大多数情况下，目标环境不易获取。在地球观测传感器的背景下，这个问题通常借助一组复杂的伪经验模型和/或昂贵的实验室设备来解决。本文描述了一种更实用的方法：通过相同有效载荷的复制品在地面上重现由在轨有效载荷测量的光照条件，以便评估另一个正在研发的地球观测传感器的性能。所提出的方法在小卫星领域特别适用，因为随着成本降低，有额外单元用于这些任务的可能性变得更大。本文展示了在实际太空任务中使用该方法获得的结果，提供了有助于项目后续阶段的宝贵信息。
