System Design Of A 3U-Cubesat For An Earth Observation Mission

Abstract A technology revolution in Earth observation sensor design is occurring. This revolution in part is associated with the emergence of CubeSat platforms that have forced a de facto standardization on the volume and power into which sensors have to fit. The extent that small sensors can indeed provide similar or replacement capabilities compared to larger and more expensive counterparts has barely been demonstrated and any loss of capability of smaller systems weighed against the gains in costs and new potential capabilities offered by implementing them with a more distributed observing strategy also has not yet been embraced. This paper provides four examples of observations made with prototype miniaturized observing systems, including from CubeSats, that offer a glimpse of this emerging sensor revolution and a hint at future observing system design.

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Genetic Programming Method for Satellite System Topology and Parameter Optimization

International Journal of Aerospace Engineering ◽

10.1155/2020/6673848 ◽

2020 ◽

Vol 2020 ◽

pp. 1-14

Author(s):

Jinhui Li ◽

Yunfeng Dong ◽

Ming Xu ◽

Hongjue Li

Keyword(s):

Genetic Programming ◽

System Design ◽

Evaluation System ◽

Satellite System ◽

Earth Observation ◽

Tree Structure ◽

Programming Method ◽

Earth Observation Satellite ◽

Physical Fields ◽

System Topology

In this paper, a genetic programming method for satellite system design is proposed to simultaneously optimize the topology and parameters of a satellite system. Firstly, the representation of satellite system design is defined according to the tree structure. The genetic programming method is designed based on that representation. Secondly, according to the tree structure of different satellite schemes, different multiscale satellite models are established, in which various physical fields couple together. Then, an evaluation system is also proposed to test the performances of different satellite schemes. Finally, the application to the design of an earth observation satellite demonstrates the effectiveness of the proposed method.

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