in Space

Dstl investigates the earth's upper atmosphere

Posted 29 January 2018 · Add Comment

In a world first, a new experiment to study the effects of space weather on global communications is being launched by the UK and US governments.

Using specially designed shoebox-sized satellites known as CubeSats, scientists will be able to study the Earth’s upper atmosphere and find out how it impacts on radio frequencies through space.



Above:
WISCER CubeSat.
Courtesy Oxford Space System


Dr Mike O’Callaghan, Space Programme Manager at Dstl, said: "We’re trying to find out how the ionosphere might affect us when we communicate. For example, are signals weaker during specific space weather conditions? It’s important to understand the effects and how it might impact our communications around the world, specifically with military operations."

The Wideband Ionospheric Sounder CubeSat Experiment (WISCER) project builds on work carried out by Dstl and the University of Birmingham, which was partly funded by the UK Space Agency. It forms part of a joint programme with the Naval Research Laboratory in the United States (US). Plans are now in place to launch two CubeSat satellites during 2020/21, each with a UK and a US payload.

The UK payload will contain a WISCER antenna and waveform generator that will transmit a signal to a bespoke ground signal receiver, assessing the impact of the ionosphere on the signal. The US payload will measure how electron density changes with altitude. The collaboration offers the opportunity to generate data cost effectively, with both countries potentially sharing results.

Dr O’Callaghan added: "Space is a global endeavour and collaboration is absolutely critical to delivering the WISCER project. We’re excited to be launching the project and will be looking at initial results once in orbit."

Here in the UK, Thales Alenia Space has been awarded a contract for £1.5 million to build the WISCER payload and ground signal receiver. Ben Olivier, CEO of Thales Alenia Space, said: "We are delighted to have been selected by Dstl to contribute to this important project, which will ultimately improve the understanding of operating in the space environment. Working with key partners Oxford Space Systems and Teledyne Defence & Space, we will deliver a complete experiment package including mission system engineering."


 

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