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Photon-Counting Ground-based Optical Communications Detector

Future missions are currently being proposed / designed with existing (or moderately inproved) Space-to-Earth communication capabilities in mind. Optical communications technology offers the potential of a dramatic increase in data-rates, specifically in the down-link of science data, thereby allowing for a substantial increase in science return.Direct detection technology using pulse position modulation (PPM) is regarded as the preferred solution for "deep space" optical links.

France

T212-002GS

CEA - Commissariat a l...
Optical Feeder-link for next generation telecommunication satellites

The use of optical (laser) feeder-links for next generation telecommunication satellites is receiving strong interest from commercial telecommunication providers because it will soon not be possible to support the projected growth in bandwidth using radio frequency bands (e.g. Ka-band). Moving to higher radio frequencies such as the Q/V or W-bands does not dramatically improve available bandwidth, while it increases atmospheric attenuation to a level comparable with the laser communication bands. Cloud coverage can be mitigated by site diversity, namely by using multiple (e.g.

France

T517-501MM

ONERA
Radio climatology models of the ionosphere: status and way forward

The objective of this study was to use experimental observations of the ionosphere collected in the past years to assess the performance of climatological ionosphere models, with the focus on scintillation models. This analysis has been performed in order to evaluate the ability of these climatological models to properly support ESA's future needs, to identify weak areas, to propose recommendations for improvements and to implement these improvements whenever possible in existing models.

France

15/066

ONERA
Innovative security concepts, mechanisms and architectures for future space missions

This study aimed to achieve the following objectives:

  • To anticipate the security needs and requirements of future space missions (Earth observation, communication, navigation, science, exploration, etc.) with respect to architectures considered for future missions.

  • To build an advanced security architecture portfolio embedding state-of-the-art security concepts, technics, technologies, components and solutions.

France

15/018

Thales Alenia Space
REACH into LCA – Integration of REACH and CRMs into the Life Cycle Assessment framework

For the REACH assessment, the proposed method relies on both ESA’s existing Life Cycle Assessment (LCA) framework and the Materials & Processes Technology Board (MPTB) database. Then, the method was structured through three steps:

  • Firstly, a commonality was found between the LCA and MPTB databases: ECSS classes, which help define small groups of materials defined as 'clusters', are used to 'bridge the gap' in terms of level of precision between the LCA model of a space system and the MPTB database;

France

15/050

Deloitte Sustainability
GreenSat

Resulting from an ever increasing public pressure, the quest to be environmentally friendly is transforming the competitive landscape, as eco-friendly design results in a new frontier of innovation. As a public sector intergovernmental organisation, ESA is committed to prioritising environmental concerns in all its activities. Through its Clean Space initiative, the Agency is pioneering an eco-friendly approach to space activities.

France

15/033-a

Thales Alenia Space
Feasibility study of Active Debris Mitigation for Mega Constellations

The Thales Alenia Space study team completed a 13 month contract to study the feasibility of Active Debris Removal within mega-constellations. Within the Clean Space initiative, ESA searches for proactive answers to the environmental challenges which are faced both on Earth and in space. The Inter-Agency Space Debris Coordination Committee (IADC) has already highlighted the important topic of mega-constellations, which represent a step change in the future space environment due to the proliferation of small satellites.

France

15/099

Thales Alenia Space

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