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公开(公告)号：US11463157B2
公开(公告)日：2022-10-04
申请号：US17618736
申请日：2020-06-10
Applicant: AIRBUS DEFENCE AND SPACE SAS
Inventor： Thibault Maisonnat , Benjamin Gadat
Abstract: A method for receiving an ADS-B message is disclosed including a synchronisation phase for detecting the start of the message and a decoding phase for recovering a bit stream corresponding to a block of data in the message. The synchronisation phase is based on determining a sequence of log-likelihood ratios having the greatest likelihood of corresponding to a sequence of symbols expected from a preamble of the message. Each log-likelihood ratio corresponds to a ratio between the respective probabilities that a symbol of the signal received corresponds to one of two possible values for a symbol. The decoding phase applies a belief propagation algorithm to a sequence of log-likelihood ratios respectively associated with the symbols in the block of data in the message, with an optimised parity matrix of the cyclic redundancy code of the message.
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公开(公告)号：US11347610B2
公开(公告)日：2022-05-31
申请号：US16956850
申请日：2018-12-20
Applicant: AIRBUS DEFENCE AND SPACE SAS , AIRBUS
Inventor： Jean-Luc Marty , David Canu , Alexandre Arnold
Abstract: A system and a method for assisting with troubleshooting a complex system is disclosed in which the troubleshooting procedure can be modeled by a Markov decision process. Combining the fault tree technique with a Markov decision process, in order to determine in an optimal manner the sequence of troubleshooting actions will quickly address the consequences of a failure and ensure maintainability of the complex system.
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公开(公告)号：US11319092B2
公开(公告)日：2022-05-03
申请号：US17270258
申请日：2019-08-12
Applicant: AIRBUS DEFENCE AND SPACE SAS
Inventor： Philippe Cael
Abstract: A spacecraft is disclosed having at least three flat side walls, at least one main communication antenna, including a radiating element having a central axis of radiation (AC-AC), a movable arm configured to move between a deployed position and a folded position, a reflector suitable for reflecting or receiving radiofrequency waves in a direction of emission (DE). The radiating element is fixed to a side wall so that the central axis of radiation (AC-AC) is arranged perpendicularly to the side wall, and the movable arm is shaped so that an offset angle (β) of between 25° and 65° is formed between the side wall and the direction of emission (DE), when the movable arm is in a deployed position.
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公开(公告)号：US11307077B2
公开(公告)日：2022-04-19
申请号：US16468200
申请日：2017-12-08
Applicant: AIRBUS DEFENCE AND SPACE SAS
Inventor： Sophie Jallade , Mathieu Monge-Cadet , Sylvain Arnaud , Barbara Busset
Abstract: Disclosed is a method for gauging the liquid propellant tank of a spacecraft during a phase of high-thrust along an axis, the tank being thermally conductive and having a known geometry. The method includes steps of: attaching, on a wall of the tank, a heating member and at least one temperature sensor in proximity to the heating member and in a plane of interest perpendicular to the thrust axis; during the high-thrust phase, heating the wall of the tank and acquiring temperature measurements of the wall of the tank at rapid frequency; determining the instant I when the temperature measured by the sensor changes, such change indicating the presence of the liquid-gas interface in the tank in the plane of interest; and determining the volume of liquid propellant present in the tank at instant I.
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公开(公告)号：US20210316885A1
公开(公告)日：2021-10-14
申请号：US17270258
申请日：2019-08-12
Applicant: AIRBUS DEFENCE AND SPACE SAS
Inventor： Philippe CAEL
Abstract: A spacecraft is disclosed having at least three flat side walls, at least one main communication antenna, including a radiating element having a central axis of radiation (AC-AC), a movable arm configured to move between a deployed position and a folded position, a reflector suitable for reflecting or receiving radiofrequency waves in a direction of emission (DE). The radiating element is fixed to a side wall so that the central axis of radiation (AC-AC) is arranged perpendicularly to the side wall, and the movable arm is shaped so that an offset angle (β) of between 25° and 65° is formed between the side wall and the direction of emission (DE), when the movable arm is in a deployed position.
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Patent Agency Ranking
公开(公告)号：US11079568B2
公开(公告)日：2021-08-03
申请号：US16764604
申请日：2018-11-20
Applicant: Airbus Defence and Space SAS
Inventor： Pierre-Luc Georgy , Pere Roca
Abstract: A payload module (1) of a stratospheric drone including: a casing (10), and a piece of optical equipment (20) comprising an optical axis, mounted in the casing, wherein the module being includes a mirror (40) positioned on the optical axis facing the optical equipment, the mirror being swivelable about at least one axis, within an angular range, wherein the casing has a through-opening (11) shaped so that any light ray received or emitted by the optical equipment parallel to the optical axis and reflected by the mirror passes through the through-opening, over the entire angular range of the mirror.
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公开(公告)号：US20210182317A1
公开(公告)日：2021-06-17
申请号：US16759546
申请日：2018-10-25
Applicant: AIRBUS DEFENCE AND SPACE SAS
Inventor： Guillaume GADEK , Khaled KHELIF , Nicolas MALANDAIN , Alexandre PAUCHET , Laurent VERCOUTER
IPC: G06F16/28 , G06F16/901 , G06F16/25
Abstract: A computer implemented method for detecting a set of relevant communities of accounts, the accounts being connected by at least one communication platform, includes collecting data from a stream of messages circulating on at least one communication platform; extracting interaction data and shared objects, the shared objects being shared among the accounts; processing each collected message in order to obtain content metadata; processing collected data in order to obtain an account profile of each account; from collected data building shared objects graphs and interaction graphs; building a resulting graph; applying a community detection method to the resulting graph to obtain a set of communities of accounts; computing quality indicators of the set of communities to obtain at least one score for each community the score enabling the selection of at least a relevant community.
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28.发明申请公开(公告)号：US20200372814A1
公开(公告)日：2020-11-26
申请号：US16636171
申请日：2018-07-26
Applicant: AIRBUS DEFENCE AND SPACE SAS
Inventor： Frédéric BOS , Thierry BERTOLACCI
Abstract: An on-board command unit for an unmanned aircraft, according to which the on-board command unit is programmed specifically for a mission and configured to be connected to a flight control system of the unmanned aircraft, the flight control system including an autopilot module; the on-board command unit includes an environment sensor; the on-board command unit includes a unit for processing and memorising data coming from the environment sensor and mission parameters, the command unit being adapted to modify at least one parameter of the flight control system or a mission parameter on the basis of mission data and data coming from the environment sensor.
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公开(公告)号：US20200283149A1
公开(公告)日：2020-09-10
申请号：US16765291
申请日：2018-11-20
Applicant: Airbus Defence and Space SAS
Inventor： Pierre-Luc GEORGY , Pere ROCA
Abstract: A payload module of a stratospheric drone including a casing (10), and payload equipment contained in the casing (10), wherein the casing includes a support structure (12) and a cover (15), the support structure being suitable for attachment to the drone at the front end thereof, relative to the direction of movement of the drone, and for extending forward from said front end, and in that the cover (15) and the payload equipment are supported by the support structure (12).
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公开(公告)号：US10527493B2
公开(公告)日：2020-01-07
申请号：US16341278
申请日：2017-09-29
Applicant: AIRBUS DEFENCE AND SPACE SAS
Inventor： Frédéric Pasternak
Abstract: A spectrophotometric device is disclosed having a plurality of spectral measurement bands including a single telescope and a single spectrophotometer. The plurality of spectral bands is obtained by placing pupillary separating prisms at an entrance pupil of the telescope, and by using spectral band selection filters. Such a device has a lower weight, smaller dimensions, and a lower price. In particular, it may be integrated into a satellite, in particular for a mission to characterize flows of carbon compounds that are produced on the Earth's surface.
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