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arXiv 1811.03413astro-ph.IMphysics.ins-detphysics.space-ph
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CubeSats上的光通信--开启空间科学的新时代

Optical communication on CubeSats - Enabling the next era in space science

Alberto Carrasco-Casado, Abhijit Biswas, Renny Fields, Brian Grefenstette, Fiona Harrison, Suzana Sburlan, Morio Toyoshima

摘要:

立方体卫星是快速进行简单空间实验的极好平台。在过去几年中,已经成功发射了数百颗立方体卫星,宣布发射的数量每年都在增加。这些平台为大学和组织提供了进入太空的便捷途径,否则它们负担不起。然而,这些航天器仍然依赖于射频通信,其中频谱已经拥挤,无法支持日益增长的地面数据传输需求。Lasercom有望成为解决这一问题的解决方案,其传输容量可能提高几个数量级,同时保持低尺寸,重量和功率。2016年至2017年,加州理工学院和喷气推进实验室的联合研究所凯克空间研究所(KISS)汇集了一批空间科学家和激光通信工程师,以解决该技术目前面临的挑战,使其能够与RF竞争,并最终在需要高数据速率时取代它。在两次为期一周的讲习班之后,工作组开始编写一份涉及三个研究案例的报告:低地球轨道、交叉连接和深空。本文介绍了这些KISS研讨会的要点和结论。

英文摘要:

CubeSats are excellent platforms to rapidly perform simple space experiments. Several hundreds of CubeSats have already been successfully launched in the past few years and the number of announced launches grows every year. These platforms provide an easy access to space for universities and organizations which otherwise could not afford it. However, these spacecraft still rely on RF communications, where the spectrum is already crowded and cannot support the growing demand for data transmission to the ground. Lasercom holds the promise to be the solution to this problem, with a potential improvement of several orders of magnitude in the transmission capacity, while keeping a low size, weight and power. Between 2016 and 2017, The Keck Institute for Space Studies (KISS), a joint institute of the California Institute of Technology and the Jet Propulsion Laboratory, brought together a group of space scientists and lasercom engineers to address the current challenges that this technology faces, in order to enable it to compete with RF and eventually replace it when high-data rate is needed. After two one-week workshops, the working group started developing a report addressing three study cases: low Earth orbit, crosslinks and deep space. This paper presents the main points and conclusions of these KISS workshops.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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