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121.发明公开公开(公告)号：US20230202121A1
公开(公告)日：2023-06-29
申请号：US17999332
申请日：2021-05-10
Applicant: ARIANEGROUP SAS , CENTRE NATIONAL D'ETUDES SPATIALES
Inventor： Alban DU TERTRE , Didier GUICHARD
CPC classification number: B29C66/5221 , B22F5/008 , B22F10/25 , B29C65/562 , B29C66/742 , B29C66/1222 , B29C66/7392 , B29C66/7394 , F02K9/346 , B29L2031/749
Abstract: The invention relates to a method for assembling a first metal part with a second part made of an organic matrix composite material, the first part having a first connecting portion and the second part having a second connecting portion, the method comprising the steps of:
causing the first connecting portion and the second connecting portion to overlap, a through-hole of the second connecting portion opening onto the first connecting portion,
forming a protective layer on the side wall of the through-hole,
forming a seal between the protective layer and the first connecting portion, and
forming, by additive manufacturing using cold gas spray deposition of metal powder, a fastening element which extends into the through-hole, is fastened to the first connecting portion and encloses the second connecting portion.-
122.发明授权公开(公告)号：US11543536B2
公开(公告)日：2023-01-03
申请号：US16958688
申请日：2018-12-14
Applicant: CENTRE NATIONAL D'ETUDES SPATIALES
Inventor： Nicolas Capet , François-Xavier Marmet
Abstract: An antenna assembly configured to transmit terrestrial positioning signals from a relay platform having a frame of reference, the transmit being in at least a first mode with a radiating pattern having at least a main lobe having a narrow aperture in a plane and a wide aperture in a plane. A relay platform comprising a receiver of a synchronization signal, a transmitter of positioning signals to an area of service comprising a number of rovers, and an antenna assembly configured to produce a radiating pattern adapted to transmit the positioning signals as a function of the environment of the relay platform and the rovers. In a number of embodiments the relay platforms may be organized in a network of platforms, possibly of masters and slaves that receive feed-back from the rovers in the AoS so as to optimize the configuration of the antenna elements dynamically to optimize the QoS of positioning based on a number of selected quality indexes.
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公开(公告)号：US11380972B2
公开(公告)日：2022-07-05
申请号：US16768917
申请日：2018-12-05
Applicant: UNIVERSITÉ DE BORDEAUX , CENTRE NATIONAL D'ETUDES SPATIALES , INSTITUT POLYTECHNIQUE DE BORDEAUX , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
Inventor： Anthony Ghiotto , Frédéric Parment
Abstract: This microwave component (10) comprises a waveguide (12) comprising an upper layer, a lower layer, and a central layer (18) intermediate between the upper layer and the lower layer, said layers defining a zone (19) of propagation of an electromagnetic wave, the propagation zone (19) extending along a propagation axis, and comprising a cavity (32) bounded by the upper layer, the lower layer, and, laterally, by two opposite lateral edges (36) of the central layer (18).
The waveguide (12) comprises at least one dielectric strip (28) placed in the propagation zone (19), the dielectric strip (28) being defined in one of the upper layer and the lower layer or being placed in the cavity (32) away from the lateral edges (36) of the cavity (32).-
公开(公告)号：US11079323B2
公开(公告)日：2021-08-03
申请号：US15986499
申请日：2018-05-22
Applicant: CENTRE NATIONAL D'ETUDES SPATIALES , Office National d'Etudes et de Recherches Aérospatiales
Inventor： Philippe Hébert , François Lemaître , Xavier Orlik , Thibault Dartigalongue
Abstract: A method of generating frequency combs composed of a predetermined number of rays, wherein the method includes the modulation of a main ray generated by a laser source (20), by a first radiofrequency signal at a first frequency value, by a second radio frequency signal at a second frequency value, and by a third radio frequency signal at a third frequency value. The second frequency value is equal to twice the first frequency value. The third frequency value is equal to three times the first frequency value.
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125.发明授权公开(公告)号：US10942281B2
公开(公告)日：2021-03-09
申请号：US16089814
申请日：2017-03-31
Applicant: CENTRE NATIONAL D'ETUDES SPATIALES
Inventor： Denis Laurichesse , François-Xavier Marmet , Lionel Ries
Abstract: The invention discloses an improved GNSS receiver which determines a location of the receiver by combining a first location determined either from the standard PVT of a multi-frequency receiver and/or from a positioning aid like a map matching algorithm, inertial navigation system, WiFi localization system or other, and a second location determined by integrating the velocity from the standard PVT. The combination is based on a duty cycle or a combination of the duty cycle with a weighting of the error budgets of the first position and the second location. The improved receiver is preferably based on a standard receiver with an add-on software module which receives and processes data transmitted from the standard receiver by, for example, NMEA messages. The improved receiver allows a determination of a more precise and smoother trajectory in a simple way.
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Patent Agency Ranking
126.发明授权公开(公告)号：US10887004B2
公开(公告)日：2021-01-05
申请号：US16620066
申请日：2018-06-08
Inventor： Vincent Tugend
Abstract: The present invention relates to a telecommunications satellite intended for being placed in earth orbit, comprising an antenna comprising a reflector and a network of sources. In addition, said satellite comprises adaptive analog beamforming networks, said adaptive analog beamforming networks being connected to respective groups of sources other than the network of sources. Each adaptive analog beamforming network is suitable for simultaneously activating a predetermined number of beams serving respective geographic zones inside a geographic region on Earth's surface. Each of group of sources comprises sources shared with other groups of sources, and at least one geographic region has a geographic overlap of at least 30% with other geographic regions.
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127.发明申请公开(公告)号：US20200382205A1
公开(公告)日：2020-12-03
申请号：US16620066
申请日：2018-06-08
Inventor： Vincent TUGEND
Abstract: The present invention relates to a telecommunications satellite intended for being placed in earth orbit, comprising an antenna comprising a reflector and a network of sources. In addition, said satellite comprises adaptive analog beamforming networks, said adaptive analog beamforming networks being connected to respective groups of sources other than the network of sources. Each adaptive analog beamforming network is suitable for simultaneously activating a predetermined number of beams serving respective geographic zones inside a geographic region on Earth's surface. Each of group of sources comprises sources shared with other groups of sources, and at least one geographic region has a geographic overlap of at least 30% with other geographic regions.
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公开(公告)号：US20200371247A1
公开(公告)日：2020-11-26
申请号：US16771210
申请日：2018-12-11
Applicant: CENTRE NATIONAL D'ETUDES SPATIALES
Inventor： François-Xavier MARMET
Abstract: A device and the associated method for detecting spoofing of GNSS signals are provided. The device includes an RF chain to acquire and down convert a signal comprising one or more GNSS signals transmitted by GNSS sources, each of the GNSS signals comprising a navigation message modulated by a spreading code associated to a related GNSS source, an analog to digital converter, to digitize the down converted signal, and a computer logic, to: calculate over a grid of spreading code phase delays and Doppler shifts, cross-correlation functions between the digitized signal and locally generated replicas of the signal, for one or more of the spreading codes, identify cross-correlation peaks, and analyze the cross-correlation peaks to detect spoofing situations.
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公开(公告)号：US10763582B2
公开(公告)日：2020-09-01
申请号：US16160904
申请日：2018-10-15
Applicant: THALES , CENTRE NATIONAL D'ETUDES SPATIALES
Inventor： Thibaud Calmettes , Benoît Vautherin , Yoan Gregoire , Christelle Iliopoulos
Abstract: A method for determining a phase bias in the signal transmitted by at least one of the radiating elements of an active antenna on the ground emitting signals into space using a space-division multiple access SDMA method, implementing a step, for each reference receiver, of comparing, to a threshold, the difference between the value of a measurement of the power received by each reference receiver and the sum, out of the radiating elements of the subset beamforming in the direction of the reference receiver, of the differences between the equivalent isotropically radiated power in the direction of the reference receiver and the free-space path loss of each radiating element of the subset.
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130.发明申请公开(公告)号：US20200041658A1
公开(公告)日：2020-02-06
申请号：US15738926
申请日：2016-06-22
Applicant: CENTRE NATIONAL D'ETUDES SPATIALES
Inventor： Denis LAURICHESSE
Abstract: The invention discloses a receiver and a method to process navigation signals from one or more GNSS constellation, wherein an observation model and a measurement model allow a direct calculation of the carrier phase ambiguities. More specifically, in a triple frequency implementation, the receiver calculates in turn the extrawidelane, widelane and narrowlane ambiguities. The code and carrier phase biases can also be directly calculated. Thanks to the invention a quicker acquisition and tracking of a precise position, which will also be less noisy than a prior art solution, especially in some embodiments of the invention using a RAIM and/or a gap-bridging function. Also, code smoothing using the Doppler and low latency clock synchronization allow to decrease the noise levels of the precise point navigation solutions.
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