The European Space Agency is an intergovernmental organisation dedicated to the exploration of space, with 21 member states. Established in 1975 and headquartered in Paris, France, ESA has a staff of more than 2,000 with an annual budget of about €4.28 billion / US$5.51 billion .ESA's space flight programme includes human spaceflight, mainly through the participation in the International Space Station programme, the launch and operations of unmanned exploration missions to other planets and the Moon, Earth observation, science, telecommunication as well as maintaining a major spaceport, the Guiana Space Centre at Kourou, French Guiana, and designing launch vehicles. The main European launch vehicle Ariane 5 is operated through Arianespace with ESA sharing in the costs of launching and further developing this launch vehicle.ESA science missions are based at ESTEC in Noordwijk, Netherlands, Earth Observation missions at ESRIN in Frascati, Italy, ESA Mission Control is in Darmstadt, Germany, the European Astronaut Centre that trains astronauts for future missions is situated in Cologne, Germany, and the European Space Astronomy Centre is located in Villanueva de la Cañada, Madrid, Spain. Wikipedia.
European Space Agency | Date: 2016-07-18
A multiport distribution network is provided that supports N inputs and N outputs, where N>1, the multipart distribution network providing an independent distribution path extending from each input to each output, each path being formed from a sequence of at least two fundamental units. Each fundamental unit comprises a circuit formed of multiple resonator cavities and having n input ports for receiving respective input signals, and n output ports for outputting respective output signals, where n>1, and wherein the circuit is configured to: (i) at each input port, split an input signal received at that input port into n equal signal components and provide each of the n signal components to a respective output port of the circuit; and (ii) at each output port, combine the signal components received from the n input ports to form an output signal for that output port. The multipart distribution network is configured to apply the same filter transfer function along each independent distribution path.
European Space Agency | Date: 2017-02-01
A multiport distribution network is provided that supports N inputs and N outputs, where N>1, the multiport distribution network providing an independent distribution path extending from each input to each output, each path being formed from a sequence of at least two fundamental units. Each fundamental unit comprises a circuit formed of multiple resonator cavities and having n input ports for receiving respective input signals, and n output ports for outputting respective output signals, where n>1, and wherein the circuit is configured to: (i) at each input port, split an input signal received at that input port into n equal signal components and provide each of the n signal components to a respective output port of the circuit; and (ii) at each output port, combine the signal components received from the n input ports to form an output signal for that output port. The multiport distribution network is configured to apply the same filter transfer function along each independent distribution path.
Agency: GTR | Branch: EPSRC | Program: | Phase: Research Grant | Award Amount: 3.72M | Year: 2014
The conditions in which materials are required to operate are becoming ever more challenging. Operating temperatures and pressures are increasing in all areas of manufacture, energy generation, transport and environmental clean-up. Often the high temperatures are combined with severe chemical environments and exposure to high energy and, in the nuclear industry, to ionising radiation. The production and processing of next-generation materials capable of operating in these conditions will be non-trivial, especially at the scale required in many of these applications. In some cases, totally new compositions, processing and joining strategies will have to be developed. The need for long-term reliability in many components means that defects introduced during processing will need to be kept to an absolute minimum or defect-tolerant systems developed, e.g. via fibre reinforcement. Modelling techniques that link different length and time scales to define the materials chemistry, microstructure and processing strategy are key to speeding up the development of these next-generation materials. Further, they will not function in isolation but as part of a system. It is the behaviour of the latter that is crucial, so that interactions between different materials, the joining processes, the behaviour of the different parts under extreme conditions and how they can be made to work together, must be understood. Our vision is to develop the required understanding of how the processing, microstructures and properties of materials systems operating in extreme environments interact to the point where materials with the required performance can be designed and then manufactured. Aligned with the Materials Genome Initiative in the USA, we will integrate hierarchical and predictive modelling capability in fields where experiments are extremely difficult and expensive. The team have significant experience of working in this area. Composites based on exotic materials such as zirconium diborides and silicon carbide have been developed for use as leading edges for hypersonic vehicles over a 3 year, DSTL funded collaboration between the 3 universities associated with this proposal. World-leading achievements include densifying them in <10 mins using a relatively new technique known as spark plasma sintering (SPS); measuring their thermal and mechanical properties at up to 2000oC; assessing their oxidation performance at extremely high heat fluxes and producing fibre-reinforced systems that can withstand exceptionally high heating rates, e.g. 1000oC s-1, and temperatures of nearly 3000oC for several minutes. The research planned for this Programme Grant is designed to both spin off this knowledge into materials processing for nuclear fusion and fission, aerospace and other applications where radiation, oxidation and erosion resistance at very high temperatures are essential and to gain a deep understanding of the processing-microstructure-property relations of these materials and how they interact with each other by undertaking one of the most thorough assessments ever, allowing new and revolutionary compositions, microstructures and composite systems to be designed, manufactured and tested. A wide range of potential crystal chemistries will be considered to enable identification of operational mechanisms across a range of materials systems and to achieve paradigm changing developments. The Programme Grant would enable us to put in place the expertise required to produce a chain of knowledge from prediction and synthesis through to processing, characterisation and application that will enable the UK to be world leading in materials for harsh environments.
Agency: European Commission | Branch: H2020 | Program: CSA | Phase: COMPET-04-2014 | Award Amount: 3.53M | Year: 2014
The project PER ASPERA (ASTRA) (Latin meaning Through hardships to the stars) aims at developing an integrated master plan (a.k.a. roadmap) of activities and associated activity descriptions, for a Strategic Research Cluster (SRC) in Space Robotics Technology. The roadmap will be implemented within a Strategic Research Cluster (SRC) through operational grants, which will be recommended by PERASPERA and issued by the European Commission. PERASPERA will plan and accompany the SRC to attain its overall objective to deliver, within the 2023/2024 framework, key enabling technologies and demonstrate autonomous robotic systems at a significant scale as key elements for on-orbit satellite servicing and planetary exploration. The main deliverables of the PERASPERA project will be:  a thoroughly coordinated/harmonised roadmap of space robotics technologies, concept development and demonstration activities. The coordination/harmonisation relies in the pre-existing network of the partners, complemented by new measures implemented by PERASPERA  draft text for the calls (and related technical annexes) that will allow tightly coupled developments across different operational grants  a Plan for the analysis and evaluation of the results of the SRC, that will be enacted by the PSA across its duration  a Plan for the specific exploitation and potential use of the SRC expected outputs that will also consider spin-out  a plan for risk assessment and contingency analysis  wide-reaching dissemination and outreach actions to communicate to the public and educate the young engineers that will make space robotics become mainstream
Agency: European Commission | Branch: FP7 | Program: CP-FP | Phase: AAT.2013.8-2. | Award Amount: 11.54M | Year: 2014
The HEXAFLY-INT project aims to flight test an experimental vehicle above Mach 7 to verify its potential for a high aerodynamic efficiency during a free-flight while guaranteeing a large internal volume. The feasibility for a 3m long vehicle was demonstrated during the European L0 precursor project HEXAFLY. Its realization will now be enabled on an international scale underlining the need for global cooperation in case of a future deployment of a high-speed cruiser. This flight opportunity will increase drastically the Technology Readiness Level of developments realized in previous high-speed EC projects such as ATLLAS I & II and LAPCAT I & II. The different technologies and methodologies which need experimental flight testing at high speed are grouped around the major axes of HEXAFLY-INT: 1. High-Speed Vehicle Concepts 2. High-Speed Aerodynamics 3. High-Temperature Materials and Structures 4. High-Speed Flight Control 5. High-Speed Environmental Impact To realize this experimental flight test, different consecutive steps are planned each followed by a critical review together with international partners: updated of the mission profile based upon the feasibility study a detailed design of a high-speed experimental flight vehicle selection and manufacturing of ground-tested technologies and systems assembly, integration and testing of the experimental flight test vehicle identification and procurement of the most promising flight platform(s) The design of the experimental high-speed cruise vehicle will be the main driver and challenge in this project with following scientific objectives: - an aerodynamic balance at a cruise Mach number higher than 7 - an integrated conceptual design demonstrating a combined volumetric and aerodynamic efficiency - making maximum use of developed advanced high-temperature materials
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: EINFRA-9-2015 | Award Amount: 6.65M | Year: 2015
The EVER-EST project will enhance Research and Capacity Building in the Earth Science (ES) domain, by providing a generic Service Oriented-based Architecture Virtual Research Environment (VRE) tailored to the needs of the ES community. The full range of both generic and ES data management specific services provided by EVER-EST will facilitate the dynamic approach to collaborative working and research. Scientist will be able to discover, access, process, share and interoperate heterogeneous data, algorithms, results and experiences within and across their communities, including those in domains beyond Earth Science. Data providers will be able to monitor users experience and collect feedback through the VRE, improving their capacity to adapt to end-user needs offering solutions to unlock scientist potentials and creativity. EVER-EST e-infrastructure will be validated by four Virtual Research Communities (VRC) covering different multidisciplinary working ES domains: ranging from Sea Monitoring, to Natural Hazards (floods, weather, wildfires), Land Monitoring and Risk Management (volcanoes and seismic). Each of these VRC will use the VRE according to its own specific requirements for data, software, best practices and community engagement. The VRE will leverage on the results of several FP7 projects which have produced state-of-the-art technologies for scientific data management and curation. Such capabilities will be enriched during the EVER-EST project using the output of a second group of FP7 initiatives providing models, techniques and tools for the preservation of scientific methods and their implementation in computational forms such as scientific workflows. EVER-EST will implement solutions for data publication, citation and trust. EVER-EST will provide the means to climb up existing peaks and obstacles to information sharing in Earth Science allowing research teams to collaboratively collect, manipulate and share resources, allowing creation of new knowledge.
European Space Agency | Date: 2016-05-06
A method of performing radio occultation for inferring physical properties of a portion of atmosphere includes receiving, at a receiver, a first signal from a satellite at a first timing; receiving, at the receiver, a second signal from the satellite at a second timing different from the first timing; correlating the first signal with the second signal; and determining a first quantity indicative of a path delay between the first signal and the second signal resulting from at least one of the first signal and the second signal having passed through the portion of atmosphere between transmission by the satellite and reception at the receiver, based on a result of the correlation. The application further relates to a system for performing radio occultation for inferring physical properties of a portion of atmosphere.
European Space Agency | Date: 2016-05-11
The present invention relates to detecting link failure in a receiver for receiving differential voltage signals, said link failure including any or all of a single short failure, double short failure, single open failure, and double open failure. The invention proposes a method of determining link failure in a receiver for receiving a differential voltage signal via a first signal line and a second signal line, the method comprising: obtaining a first quantity depending on the larger one of a maximum value over time of a voltage level that is attained in the first signal line and a maximum value over time of a voltage level that is attained in the second signal line; obtaining a second quantity depending on a maximum value over time of an average of an instantaneous voltage level in the first signal line and an instantaneous voltage level in the second signal line; and determining that the link failure has occurred on the basis of the first quantity and the second quantity. The present invention further proposes a corresponding apparatus for determining link failure.
European Space Agency | Date: 2016-11-09
This application relates to a method of performing radio occultation for inferring physical properties of a portion of atmosphere. The method comprises receiving, at a receiver, a first signal from a satellite at a first timing, receiving, at the receiver, a second signal from the satellite at a second timing different from the first timing, correlating the first signal with the second signal, and determining a first quantity indicative of a path delay between the first signal and the second signal resulting from at least one of the first signal and the second signal having passed through the portion of atmosphere between transmission by the satellite and reception at the receiver, based on a result of the correlation. The application further relates to a system for performing radio occultation for inferring physical properties of a portion of atmosphere.
European Space Agency | Date: 2016-12-14
A method and apparatus are provided for tracking a binary offset carrier (BOC) navigation signal in a receiver by locating the main correlation peak of the BOC signal, wherein the BOC autocorrelation function is composed of a main peak, corresponding to zero offset, and multiple side peaks, each of known width. The method comprises performing a first set of correlations to determine a coarse location of the main peak, wherein the first set of correlations is used to discriminate the main peak from the side peaks; and performing a second set of correlations to determine a fine location of the main peak, wherein the second set of correlations is performed within said known width. The second set of correlations can be defined as a subset of the first set of correlations. The coarse location of the main peak from the first set of correlations is used to constrain or correct the fine location from the second set of correlations such that the fine location is determined for said main peak to perform said tracking.