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An Experimental Platform for Multi-spacecraft Phase-Array Communications

机译:多航天器相控阵通信实验平台

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摘要

The emergence of small satellites and CubeSats for interplanetary explorationwill mean hundreds if not thousands of spacecraft exploring every corner of thesolar-system. Current methods for communication and tracking of deep spaceprobes use ground based systems such as the Deep Space Network (DSN). However,the increased communication demand will require radically new methods to easecommunication congestion. Networks of communication relay satellites located atstrategic locations such as geostationary orbit and Lagrange points arepotential solutions. Instead of one large communication relay satellite, wecould have scores of small satellites that utilize phase arrays to effectivelyoperate as one large satellite. Excess payload capacity on rockets can be usedto warehouse more small satellites in the communication network. The advantageof this network is that even if one or a few of the satellites are damaged ordestroyed, the network still operates but with degraded performance. Thesatellite network would operate in a distributed architecture and somesatellites maybe dynamically repurposed to split and communicate with multipletargets at once. The potential for this alternate communication architecture issignificant, but this requires development of satellite formation flying andnetworking technologies. Our research has found neural-network controlapproaches such as the Artificial Neural Tissue can be effectively used tocontrol multirobot/multi-spacecraft systems and can produce human competitivecontrollers. We have been developing a laboratory experiment platform calledAthena to develop critical spacecraft control algorithms and cognitivecommunication methods. We briefly report on the development of the platform andour plans to gain insight into communication phase arrays for space.
机译:用于行星际探索的小卫星和立方体卫星的出现将意味着数百甚至数千个航天器在探索太阳系的每个角落。当前用于深空探测器通信和跟踪的方法使用基于地面的系统,例如深空网络(DSN)。但是,不断增长的通信需求将需要从根本上采用新方法来缓解通信拥塞。位于战略位置(如地球静止轨道和Lagrange点)的通信中继卫星网络是潜在的解决方案。代替一枚大型通信中继卫星,我们可以拥有数十个利用相控阵有效地作为一枚大型卫星运行的小型卫星。火箭上的有效载荷容量过大可用于在通信网络中存储更多的小型卫星。该网络的优势在于,即使一颗或几颗卫星受到损坏或破坏,该网络仍然可以运行,但性能会下降。卫星网络将在分布式体系结构中运行,并且某些卫星可能会动态地重新分配为立即拆分并与多个目标进行通信的目的。这种替代通信架构的潜力巨大,但这需要开发卫星编队飞行和联网技术。我们的研究发现,诸如人工神经组织之类的神经网络控制方法可以有效地用于控制多机器人/多航天器系统,并可以产生人类竞争性控制器。我们一直在开发一个名为Athena的实验室实验平台,以开发关键的航天器控制算法和认知通信方法。我们简要报告了平台的发展以及我们的计划,以深入了解太空通信相阵列。

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