由于我们无法将生成的所有数据传输到地球，因此正在阻止地球观察。爱尔兰的研究人员开发了一套新的管道，该管道以智能馈线链路的形式形成，以修复数据瓶颈。
从太空观察地球可以帮助管理灾难，监测气候变化，并帮助农民和追踪野生动植物的人们。但是，由于缺乏获取能力数据from the satellites back to earth. Researchers from the RAVEN project are aiming to fix this bottleneck by developing optical feeder links which can do this in real time.
直到不久前，卫星would have cost EUR 100 million to build and be about the size of a double decker bus. But the advent of smaller, cheaper cube satellites is changing all this and, in the process, lowering the entry barriers to space.
“Where before space was dominated by government bodies, now it is becoming a place to do business,” says John Mackey, RAVEN project coordinator and CEO of photonics specialists mBryonics of Galway, Ireland. One example is Planet Labs, set up by ex-NASA scientists in 2010, which recently began imaging the earth on a daily basis.
破旧的管道
Such initiatives are regularly generating petabytes of data, but the pipes for bringing the data down to earth are beginning to show their age.
乌鸦（Raven）进来。“我们正在为SAT COM创建全新的管道，这可能会彻底改变卫星如何用于交流目的，” Mackey先生说。
Mbryonics开发了一种用于空间中光学通信的智能体系结构，可以以自动，透明的方式将卫星星座连接起来，并创建虚拟化的分布式接地段。“它可以最小即时的麦基先生说。
This photonics system can not only handle 10 gigabytes per second of data but is also considerably lighter and cheaper than existing solutions. “We have managed to miniaturise the whole system down with a revolutionary SWaP (size,weight and power) and the price point is considerably less, so it is suitable for small platforms and mass production,” says Mr Mackey.
Optical brains
The team has developed an ArcLight modem – an optical software –defined network which acts as a kind of optical brain allowing satellites to communicate with each other. They have also used RAVEN funding to explore the potential of EO from High Altitude Platforms – constellations of balloons, airships or drones which fly 20 kilometres above the earth in the stratosphere.
As well as advancing the technology, mBryonics has used the six-month duration of RAVEN to talk to key stakeholders in the satcom ecosystem about what they need from a photonics system. “H2020 is a nice door-opener when you want to have conversations with people as it gives prestige,” says Mr Mackey.
该团队现在拥有一个原型自适应光学段阵列馈线系统，并计划申请Raven II资金以进一步开发它。他们相信，这种技术的未来看起来光明，而不仅仅是EO。Mackey先生预测，数据爆炸是由开发项目（例如2020年5G移动设备发布）驱动的，这意味着现有网络将无法应付。
“When it comes to 5G, the data crunch is going to be phenomenal—earth-based systems will be overwhelmed and satellite systems will come into their own to backhaul data as a kind of alternative routing option,” he says, “the bi-directional feedersystemwill be key because you will need to route the data in an intelligent way.”
Filed Under:航空航天 +防御
