Noordwijk - Binnen, Netherlands

European Space Agency

www.esa.int/ESA
Noordwijk - Binnen, Netherlands

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.


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Patent
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.


Patent
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.


Patent
European Space Agency | Date: 2015-04-14

A, method and apparatus for wirelessly transmitting data to a plurality of terminals in each of a plurality of beams through a plurality of transmit feeds includes selecting, for each beam, two or more terminals among the plurality of terminals in the beam as a subgroup of terminals, on the basis of channel state information of the plurality of terminals; determining, for each beam, equivalent channel state information representing the subgroup of terminals in the beam on the basis of the channel state information of the terminals of at least one of the plural subgroups of terminals; and determining a set of weight coefficients that relate the plurality of transmit feeds to a plurality of signals that are intended for transmission in the plurality of beams on the basis of the equivalent channel state information representing the plural subgroups of terminals. Also disclosed is a method and apparatus for receiving data transmitted via wireless transmission to a plurality of beams through a plurality of transmit feeds and estimating a channel on the basis of the received data. The present disclosure is advantageously applicable to satellite communication systems.


Patent
European Space Agency | Date: 2017-04-26

The present invention relates to a method and apparatus for wirelessly transmitting data to a plurality of terminals in each of a plurality of beams through a plurality of transmit feeds, the method comprising: selecting, for each beam, two or more terminals among the plurality of terminals in the beam as a subgroup of terminals, on the basis of channel state information of the plurality of terminals; determining, for each beam, equivalent channel state information representing the subgroup of terminals in the beam on the basis of the channel state information of the terminals of at least one of the plural subgroups of terminals; and determining a set of weight coefficients that relate the plurality of transmit feeds to a plurality of signals that are intended for transmission in the plurality of beams on the basis of the equivalent channel state information representing the plural subgroups of terminals. The invention further relates to a method and apparatus for receiving data transmitted via wireless transmission to a plurality of beams through a plurality of transmit feeds and estimating a channel on the basis of the received data. The present invention is advantageously applicable to satellite communication systems.


Patent
CSIC - Institute of Refrigeration, European Space Agency and Tesat Spacecom GmbH & Co. KG | Date: 2017-07-26

The invention relates to a coating deposited on a substrate that can be exposed to the air and to the method for the production thereof by means of simple chemical methods. The invention also relates to the use thereof for the production of high-power devices operating at high frequencies.


Grant
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


Grant
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.


Patent
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.


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.


Patent
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.

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